| 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) |
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| 12/18/1979 | US4178786 Necking-out tool for forming necks on pipes |
| 12/18/1979 | US4178673 Pipe snapper machine and method |
| 12/18/1979 | CA1068198A1 Method for making tubular members and product thereof |
| 12/12/1979 | EP0006085A1 Process for the fabrication of anchoring rods or anchoring wires and their use in earth or rock anchor devices |
| 12/12/1979 | EP0006074A1 Device and method for calibrating and straightening tubes by means of a calibrating unit provided with calibrating jaws |
| 12/11/1979 | US4177659 Rotatable piercing tools for forming holes surrounded each by a boss in metal plates or the wall of metal tubes |
| 11/29/1979 | WO1979001048A1 Process for butt-joining of two successive metal strips coated with a thermoplastic polymer film and device for carrying out such process |
| 11/27/1979 | US4175419 No-size squeezing of 180 degree boiler-tube return bends |
| 11/27/1979 | US4175416 Apparatus for manufacturing heat transfer tubes |
| 11/27/1979 | US4175413 Methods and apparatuses for forming by frictional heat and pressure holes surrounded each by a boss in a metal plate or the wall of a metal tube |
| 11/27/1979 | CA1067158A1 Apparatus for making seam welded tubing |
| 11/27/1979 | CA1066956A2 Spiral pipe forming machine with device for aligning spiralling rolls |
| 11/27/1979 | CA1066955A1 Spiral pipe forming machine with device for aligning spiralling rolls |
| 11/14/1979 | EP0005194A2 Method and apparatus for the conical expanding of metal tubes |
| 11/13/1979 | US4174233 Expansion process for reducing the stresses in a seamless metal tube |
| 11/13/1979 | CA1066260A1 Valve body and method of forming same |
| 11/13/1979 | CA1066036A1 Method of and apparatus for manufacturing finned tubing |
| 10/23/1979 | US4171599 Fold structure for connecting metal sheet sections |
| 10/23/1979 | CA1064772A1 Apparatus for manufacturing flexible ducting |
| 10/17/1979 | EP0004538A1 Conic tube of helically wound strip material |
| 10/16/1979 | CA1064426A1 Hydrodynamic drawing of multiple gauge metal strip |
| 10/16/1979 | CA1064236A1 Apparatus for winding tubes around a core in heat exchangers |
| 10/09/1979 | US4170157 Trimming pipe bends |
| 10/02/1979 | CA1063404A1 Grooved roll |
| 09/25/1979 | US4168618 Y and T-finned tubes and methods and apparatus for their making |
| 09/19/1979 | EP0004240A1 Apparatus for applying collars to very thick walls |
| 09/04/1979 | CA1061690A1 Method for producing steel filaments |
| 08/28/1979 | US4165628 Fin pass roll |
| 08/28/1979 | US4165626 Wash water supplying drive head and scraper and cutter assembly |
| 08/22/1979 | EP0003641A1 Method and apparatus for producing a composite pipe |
| 08/21/1979 | US4165245 Method for the fabrication of internally weld-cladded pipe elbows |
| 08/08/1979 | EP0003370A1 Method for the continuous manufacture of a powder-filled welded tube |
| 08/08/1979 | EP0003369A1 Method for the manufacture of externally coated tube from steel strip and tube made by the method |
| 08/07/1979 | US4163921 Internally vaned tube construction |
| 08/07/1979 | US4163474 Internally finned tube |
| 08/07/1979 | US4163473 Heat exchanger |
| 07/31/1979 | US4162758 Method for producing clad steel pipes |
| 07/31/1979 | CA1059501A1 Cft box fin |
| 07/24/1979 | US4161873 Internal and external extruded nipples or nozzles in pipe headers or boiler drums |
| 07/24/1979 | US4161811 Method and apparatus for the manufacture of reinforced smooth flow pipe |
| 07/11/1979 | EP0002996A1 Solid-state means carrier, its manufacture and its use in a fluid cooling system of such means |
| 07/10/1979 | US4160312 Method and apparatus for making multi-layer spiral pipe |
| 07/10/1979 | CA1058108A1 Method for forming a track link bushing having a contoured opening |
| 07/10/1979 | CA1058019A1 Production of polymer-coated steel tubing |
| 07/03/1979 | US4159739 Heat transfer surface and method of manufacture |
| 06/19/1979 | CA1056706A1 Method and apparatus for reforming round ducts into rectangular ducts |
| 06/14/1979 | WO1979000324A1 Device for wire processing |
| 06/12/1979 | US4157654 Tube forming process |
| 06/12/1979 | CA1056223A1 Non-rotating two-part mandrel and a method of forming spiral-seamed pipe |
| 06/05/1979 | US4157024 Forming die and process for tubular fittings |
| 06/05/1979 | CA1056021A1 Fin to tube welding by high frequency current source |
| 05/30/1979 | EP0002163A1 Combined and reversible tool with tool holder for forming flanged collars on tubes or sheets |
| 05/29/1979 | US4156500 Welding, cold drawing, annealing |
| 05/22/1979 | US4155158 Apparatus for winding tubes around a core |
| 05/15/1979 | US4153982 Method and apparatus for forming cross ribbed pipes |
| 05/15/1979 | CA1054588A1 Strip winding on a cylinder; process and apparatus |
| 05/15/1979 | CA1054404A1 Method of slitting a double stranded bar |
| 05/08/1979 | US4152914 Apparatus for production of metal ribbon |
| 05/08/1979 | CA1053988A1 Corrugated metal sheet and method for its manufacture |
| 05/08/1979 | CA1053987A1 Apparatus for forming a large diameter pipe |
| 04/24/1979 | US4150466 Method of making an improved hose and tube coupling |
| 04/24/1979 | CA1053036A1 Process and device for multiple-rod internal welding of spirally seamed welded pipes |
| 04/24/1979 | CA1052989A1 Method and apparatus for manufacturing metal pipe |
| 04/24/1979 | CA1052988A1 Method of forming a header assembly |
| 04/17/1979 | US4149303 Roll |
| 04/10/1979 | US4148426 Method and apparatus for manufacturing metal pipe |
| 04/10/1979 | US4148206 Tube welding machine with exchangeable rolls |
| 03/27/1979 | CA1051374A1 Method and apparatus for production of multiple gauge strip |
| 03/13/1979 | US4143801 Multiple welding head system for fabricating pipe |
| 03/13/1979 | CA1050350A1 Apparatus for manufacturing pipe |
| 03/06/1979 | US4143209 Process for making zinc coated steel wire and product made thereby |
| 03/06/1979 | US4142663 Apparatus and method for making perforated tube |
| 03/06/1979 | US4142392 Internally groove forming apparatus for heat exchanging pipes |
| 03/06/1979 | US4142284 Multiple storage tank fabrication procedure |
| 02/27/1979 | US4141481 Method and apparatus for making helically seamed tubing |
| 02/27/1979 | US4141385 Flexible corrugated tube |
| 02/20/1979 | US4140264 Method and apparatus for making augers |
| 02/13/1979 | US4139139 Process for manufacturing butt-welded steel pipe |
| 02/06/1979 | CA1047900A1 Method for producing large diameter steel pipes |
| 01/30/1979 | US4136428 Method for producing improved heat transfer surface |
| 01/30/1979 | CA1047327A1 Conduit making machine with diameter control and method |
| 01/24/1979 | EP0000369A1 Thin - walled metal tube, method for manufacturing it, and its application |
| 01/23/1979 | CA1046858A1 Method and apparatus for forming automotive wheel rim blanks |
| 01/16/1979 | US4134196 Method of production of a wire-shaped composite addition material |
| 01/16/1979 | CA1046446A1 Production of metallic strands |
| 01/02/1979 | US4132097 Method for forming collared holes |
| 01/02/1979 | CA1045355A1 Tubes and structures formed thereby |
| 12/26/1978 | US4131151 Reactive gaseous cooling medium for the manufacture of wire |
| 12/26/1978 | US4131007 Coupling device for connecting a plurality of ports to one pipe-method of making same |
| 12/26/1978 | US4131005 Tubular member straightening, descaling and hydraulic testing apparatus |
| 12/19/1978 | US4130003 Apparatus for manufacturing helical coils |
| 12/12/1978 | US4129152 Double wall helical pipe and strip configuration for forming same |
| 12/12/1978 | US4129027 Apparatus for making metal strip |
| 12/12/1978 | CA1044179A1 Method of production of a wire-shaped composite addition material |
| 11/28/1978 | CA1043280A2 Helically seamed tubing with apparatus and method of making same |
| 11/28/1978 | CA1043137A1 Helically seamed tubing with apparatus and method for making same |
| 11/21/1978 | US4126029 Method of forming hollow cylindrical parts with internal contours |
| 11/21/1978 | US4125924 Method of producing composite metal pipe |
| 11/21/1978 | CA1042992A1 Method of manufacturing thick, high-strength steel pipe for low temperature service |
| 11/14/1978 | CA1042388A1 Method for producing bright steel from elongated workpieces of circular cross-sectional shape |