| Patents for B21D 47 - Making rigid structural elements or units, e.g. honeycomb structures (1,767) |
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| 11/30/1982 | US4361262 Method of making expanded sandwich structures |
| 11/02/1982 | US4356611 Method of fabricating vapor-liquid contact grid |
| 10/27/1982 | EP0063498A1 Structural panel |
| 09/07/1982 | US4348442 Truncated polyhedral elements projecting from the base sheet |
| 07/06/1982 | CA1126940A1 Method for stretching sheet metal and structural members formed therefrom |
| 06/01/1982 | CA1124577A1 Dunnage bar and method of making it |
| 05/18/1982 | CA1123674A1 Heat-insulated composite section and a method and apparatus for the production thereof |
| 05/12/1982 | EP0051445A2 A floor grating |
| 04/27/1982 | CA1122376A1 Metallic core panel and method of making same |
| 11/10/1981 | CA1112014A1 Structural panel, and method and apparatus for forming the same |
| 09/29/1981 | US4292376 Porous metal sheet laminate |
| 09/23/1981 | EP0036356A1 Impervious metallic light-weight construction element |
| 09/15/1981 | CA1108938A1 Core strip blank, core strip and method of making same |
| 09/08/1981 | US4287822 Truss assembly machine |
| 09/08/1981 | US4287658 Apparatus for making heat-insulated structural section assemblies |
| 08/12/1981 | EP0033413A1 Vapour-liquid contact apparatus and method of fabricating grid-elements for use in such apparatus |
| 06/30/1981 | US4276242 Vapor-liquid contact grid apparatus |
| 06/16/1981 | US4273836 Core strip blank, core strip and method of making same |
| 03/24/1981 | CA1097987A2 Machine for expanding metal webs |
| 03/24/1981 | CA1097986A2 Reticulating apparatus |
| 03/03/1981 | US4254188 Metallic core panel and method of making same |
| 01/27/1981 | US4246737 Metal structural members |
| 01/06/1981 | US4242898 Machine for bending the edges of rectangular sheets of metal |
| 12/09/1980 | US4238550 Dunnage bar and method of making it |
| 12/02/1980 | US4236473 Method of making metal beam for geodesic dome structure |
| 11/18/1980 | US4233833 Method for stretching sheet metal and structural members formed therefrom |
| 08/05/1980 | CA1082993A1 Reticulating apparatus |
| 07/22/1980 | US4213236 Tool for deforming a plurality of groove defining flanges against insulating bars in the grooves |
| 05/27/1980 | US4205118 Automobile catalytic exhaust systems |
| 03/25/1980 | US4194284 Method of making insulated construction element |
| 03/11/1980 | CA1073489A1 Stacking and destacking etched patterned metal foils using vacuum conveyors |
| 02/05/1980 | CA1071087A1 Porous laminated sheet |
| 08/14/1979 | CA1060185A1 Method for assembling two metallic planar workpieces, paralleled to one another |
| 08/07/1979 | US4163381 Method and apparatus for making a trophy column |
| 06/27/1979 | EP0002471A1 A process for the manufacture of a sheet-metal honeycomb structure by welding with corpuscular emission |
| 06/26/1979 | CA1057132A1 Controlled environment superplastic forming of metals |
| 06/26/1979 | CA1057036A1 Apparatus and method for forming truss tubular web components having flat symmetrically bifurcated ends |
| 06/26/1979 | CA1057018A1 Metal grating |
| 06/05/1979 | CA1055680A1 Method for making metallic sandwich structures |
| 03/27/1979 | US4146514 Pressure-sensitive adhesive compositions |
| 02/27/1979 | CA1049240A1 Method of making a thermal barrier construction element |
| 02/08/1979 | WO1978000002A3 Improvements relating to open flooring |
| 12/07/1978 | WO1978000002A2 Improvements relating to open flooring |
| 11/28/1978 | US4126980 Metal grating |
| 10/10/1978 | US4118855 Method of interconnecting two members |
| 07/11/1978 | US4099309 Manufacture of grids |
| 06/27/1978 | US4096678 Insulated construction element |
| 04/25/1978 | US4085558 Metal cellular decking section and method of fabricating the same |
| 03/28/1978 | US4080713 Method of joining a ladder rung to a ladder rail |
| 03/07/1978 | US4077247 Method and apparatus for improving the formability of sheet metal |
| 01/03/1978 | US4065839 Method and apparatus for the production of stacked, etched patterned metal foils for component elements |
| 07/05/1977 | US4033166 Sequencing die and method for forming truss webs from metal tubing |
| 05/31/1977 | US4025996 Sinusoidal structural element |
| 03/29/1977 | US4014201 Apparatus and method for forming truss tubular web components having flat symmetrically bifurcated ends |
| 01/25/1977 | US4004334 Method of making a structural member |
| 01/18/1977 | US4004056 Porous laminated sheet |
| 01/11/1977 | US4002000 Beam construction and method of manufacture |
| 12/28/1976 | US3999354 Structural member and box beam employing same |
| 12/28/1976 | US3999352 Wall section module |
| 11/23/1976 | US3992835 Sinusoidal structural element |
| 11/23/1976 | US3992769 Method of making a thermal barrier construction element |
| 09/14/1976 | US3979808 Method of continuously processing metal bands into hollow rails |
| 07/20/1976 | US3970400 Deformingly interlocked structural joint |
| 06/08/1976 | US3961738 Apparatus for making truss members |
| 04/06/1976 | US3948614 Composite metal sheetings |
| 04/06/1976 | US3948431 Manufacturing method of metallic honeycomb structures |
| 03/16/1976 | US3943675 Grating |