| Patents for B21C 37 - Manufacture of metal sheets, rods, wire, tubes, profilesor like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape (9,784) |
|---|
| 12/20/1988 | US4791800 Roll forming process and apparatus for making ribs in strip material |
| 12/20/1988 | CA1247078A1 Heat transfer tube having internal ridges, and method of making same |
| 12/13/1988 | US4790623 Optical fiber cable assemblies |
| 12/13/1988 | US4790172 For providing transition member between structural elements |
| 12/13/1988 | US4790165 Feed-through element for a vacuum apparatus |
| 12/07/1988 | EP0294215A2 Method of manufacturing metallic tube with spiral fin. |
| 12/06/1988 | US4788843 Method and apparatus for hydraulically forming a tubular body |
| 12/06/1988 | US4788841 Method and apparatus for making step wall tubing |
| 12/01/1988 | WO1988009231A1 Device for removing internal burrs in welded pipes |
| 11/30/1988 | EP0293101A2 A method of making an angled joint |
| 11/29/1988 | CA1245514A1 Method and apparatus for the corrugating of metal tubes |
| 11/16/1988 | CN88102675A Sizing tool for machine for longitudinal seam welding of rounded can bodies |
| 11/15/1988 | US4784311 Fuel injection tube for diesel engines |
| 11/15/1988 | US4783981 Apparatus for forming a tube from a metal band |
| 11/15/1988 | US4783980 Apparatus for making helically wound interlocked flexible pipe |
| 11/15/1988 | CA1244674A1 Composite rod structure |
| 11/09/1988 | EP0289748A2 Calibrating tool for a straight bead welding machine for rounded can shells |
| 11/09/1988 | EP0109413B1 Helically-formed pipe winding machine |
| 11/09/1988 | CN88102405A Corrugated pipe shaping machine |
| 11/08/1988 | US4782570 Fabrication and assembly of metal catalytic converter catalyst substrate |
| 11/03/1988 | DE3712542A1 Method for shaping the internal surfaces of tubes |
| 11/01/1988 | CA1243826A1 Method and apparatus for making tubes formed with holes in their peripheral walls |
| 10/26/1988 | EP0288450A2 Apparatus and method used in making wire and similar elongate members and wire made using same |
| 10/25/1988 | US4779322 Method for the manufacture of gear-wheel crimped metal fibers and products comprising these fibers |
| 10/25/1988 | CA1243476A1 Method of making a segmented externally finned heat exchanger tube |
| 10/20/1988 | WO1988007897A1 Process and devices for the manufacture of pipes with longitudinal seams |
| 10/18/1988 | US4777710 Apparatus and method used in making wire and similar elongate members and wire made using same |
| 10/05/1988 | EP0285108A2 Method of producing superconducting wire |
| 10/04/1988 | US4774827 Process of spirally winding tapes |
| 10/04/1988 | CA1242769A1 Through guide for rounded blanks on a seam welding machine |
| 09/28/1988 | EP0284410A1 Combustors for rocket engine burners |
| 09/28/1988 | EP0284141A2 Method of and device for producing thin-walled tubes |
| 09/27/1988 | US4774391 Machine for welding together the longitudinal edges of rounded can bodies |
| 09/22/1988 | DE3708004A1 Apparatus for changing over a production line for tubes or cold-rolled sections |
| 09/20/1988 | US4771931 Continuous production of seam-welded metal tubing |
| 09/20/1988 | US4771519 Machine for metal strip manufacture |
| 09/15/1988 | DE3805824A1 Process for producing rectilinear channel parts, and channel part |
| 09/08/1988 | DE3805469C1 Apparatus for the production of a steel-wool hose |
| 09/07/1988 | CN88100264A Method for manufacturing light shaped metal |
| 09/06/1988 | US4768369 Method of forming a pipe fitting |
| 09/06/1988 | US4768280 Roll forming of metal articles |
| 08/31/1988 | EP0280340A1 Method for the manufacture of gear-wheel crimped metal fibers and products comprising these fibers |
| 08/30/1988 | US4766953 Shaped tube with elliptical cross-section for tubular heat exchangers and a method for their manufacture |
| 08/30/1988 | US4766752 Machine tool for the production of tubular components |
| 08/30/1988 | US4766751 Apparatus for continuously producing tube having helical grooves in its inner surface |
| 08/30/1988 | CA1241394A1 Multi-wire electric power cable, particularly a supply cable for borehole units |
| 08/30/1988 | CA1241393A1 Multi-wire electric power cable, particularly a supply cable for borehole units |
| 08/25/1988 | DE3704707A1 Method for the production of tubes |
| 08/23/1988 | US4765174 Texture enhancement of metallic tubing material having a hexagonal close-packed crystal structure |
| 08/23/1988 | US4765058 Apparatus for manufacturing enhanced heat transfer surface |
| 08/16/1988 | US4764657 Automatic tab plate welding apparatus |
| 08/16/1988 | US4763830 Method for welding ribbed pipe |
| 08/04/1988 | DE3702066A1 Cold-rolling mill for large tubes |
| 08/03/1988 | CN88100265A Method for manufacturing light metal profiles |
| 08/02/1988 | CA1239778A1 Method for forming an electric resistance welded steel pipe |
| 07/28/1988 | WO1988005351A1 Method of producing lightweight metal structures |
| 07/28/1988 | WO1988005350A1 Method of producing lightweight metal structures |
| 07/28/1988 | WO1988005349A1 Method and device for removing internal burrs inside longitudinally welded pipe |
| 07/26/1988 | US4759486 Controlled environment chamber for use in cladding a nonaluminum core with aluminum |
| 07/19/1988 | US4757700 Process for forming flexible tubular bodies with multiple helical elements |
| 07/14/1988 | WO1988004968A1 Method of guiding material to fin-pass roll and its guide roll stand |
| 07/13/1988 | CN87108383A Method of introducing stuff into finishing roll and guide supports therefor |
| 07/12/1988 | US4756965 Connector |
| 07/12/1988 | CA1239089A1 Corrosion resistant metal pipe and process for producing same |
| 07/06/1988 | EP0273312A2 Method for welding ribbed pipe |
| 06/30/1988 | WO1988004584A1 Method of and tool bit for making a hole and a hole-surrounding flange in the wall of a workpiece |
| 06/30/1988 | DE3738858C1 Method for the production of tubes for the manufacture of rolling bearings |
| 06/28/1988 | US4753848 Bonding of halogenated organic compounds |
| 06/16/1988 | DE3641898A1 Forming station for helical-seam tube machines |
| 06/15/1988 | CN85107311B Heat-transfer tube |
| 06/08/1988 | EP0270271A2 Bonding of halogenated organic compounds |
| 06/08/1988 | EP0175743B1 Method of manufacturing hairpin configured tubes |
| 06/07/1988 | US4749823 Multi-wire electric power cable, particularly a supply cable for borehole units |
| 06/07/1988 | US4749033 Manifold and method of manufacturing the same |
| 06/07/1988 | CA1237683A1 Composite pipe, process for producing the same, and heat pipe using the same |
| 06/01/1988 | DE3640087A1 Process and device for scale-and tarnish-free annealing of welded pipes in line |
| 05/31/1988 | US4747431 Integral joint forming of work-hardenable high alloy tubing |
| 05/31/1988 | US4747289 Method of forming seam-welded tubes |
| 05/25/1988 | CN87208726U Working equipment for spiraltrons |
| 05/24/1988 | US4746049 Apparatus for fabricating multi-layer spiral tubes |
| 05/24/1988 | US4745678 Apparatus for belling and expanding coils |
| 05/24/1988 | CA1237083A1 Muffler apparatus and method for making same |
| 05/24/1988 | CA1237003A1 Apparatus for fabricating multi-layer spiral tubes |
| 05/18/1988 | EP0267739A1 Shaping anodic aluminium oxide sheet |
| 05/18/1988 | CN87101497A Shaping anodic aluminium oxide sheet |
| 05/11/1988 | DE3712543C1 Verfahren und Vorrichtung zum Herstellen von Laengsnahtrohren Method and apparatus for producing Laengsnahtrohren |
| 05/04/1988 | EP0266002A1 A method of manufacturing a tube having a smooth inner surface, and a tube obtained with that method |
| 05/04/1988 | EP0265992A1 Feed-through element for application in a vacuum apparatus; apparatus provided with such feed-through elements as well as wire material formed in such an apparatus |
| 05/03/1988 | US4741468 Apparatus for conveying rounded body blanks through a welding zone |
| 05/03/1988 | US4741081 Method and apparatus for making t-tube fittings |
| 04/27/1988 | EP0264806A2 Apparatus for crimping pipe |
| 04/26/1988 | US4739642 Tube forming apparatus |
| 04/26/1988 | CA1235666A1 Method of and means for forming and sealing helically wound tubes |
| 04/19/1988 | US4738008 Apparatus for forming a non-rotating metal strip helix |
| 04/06/1988 | EP0262363A2 Process and device for continuously manufacturing tubular articles using longitudinal laser seam welding |
| 04/05/1988 | US4735071 Apparatus for continuously producing tube having helical grooves in its inner surface |
| 04/05/1988 | US4734981 To achieve a cross-section of constant area |
| 03/29/1988 | US4733716 Bushing in continuous casting dip forming apparatus |
| 03/29/1988 | US4733699 Composite pipe, process for producing the same, and heat pipe using the same |
| 03/29/1988 | US4733698 Heat transfer pipe |