| More topics under "B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching" (156,281) |
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| B21D 1 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling (4,692) | | B21D 11 - Bending not restricted to forms of material mentioned in only one of groups , ,; Bending not provided for in groups; Twisting (4,159) | | B21D 13 - Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form (2,021) | | B21D 15 - Corrugating tubes (1,257) | | B21D 17 - Forming single grooves in sheet metal or tubular or hollow articles (1,507) | | B21D 19 - Flanging or other edge treatment, e.g. of tubes (3,484) | | B21D 21 - Combined processes according to methods covered by groups (343) | | B21D 22 - Shaping without cutting, by stamping, spinning, or deep-drawing (12,324) | | B21D 24 - Special deep-drawing arrangements in, or in connection with, presses (1,969) | | B21D 25 - Working sheet metal of limited length by stretching, e.g. for straightening (421) | | B21D 26 - Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces (5,593) | | B21D 28 - Shaping by press-cutting; Perforating (12,707) | | B21D 3 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (4,094) | | B21D 31 - Other methods for working sheet metal, metal tubes, metal profiles (2,523) | | B21D 33 - Special measures in connection with working metal foils, e.g. gold foils (280) | | B21D 35 - Combined processes according to methods covered by groups (2,318) | | B21D 37 - Tools as parts of machines covered by this subclass (19,804) | | B21D 39 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders (11,420) | | B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982) | | B21D 43 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices (11,526) | | B21D 45 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass (3,285) | | B21D 47 - Making rigid structural elements or units, e.g. honeycomb structures (1,767) | | B21D 49 - Sheathing or stiffening objects (201) | | B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374) | | B21D 51 - Making hollow objects (8,973) | | B21D 53 - Making other particular articles (18,517) | | B21D 55 - Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass (1,032) | | B21D 7 - Bending rods, profiles, or tubes (6,195) | | B21D 9 - Bending tubes using mandrels or the like (1,513) |
| Patents for B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching (203) |
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| 02/20/1980 | EP0008191A1 Metal end cover for a container and method for producing it | | 12/26/1978 | CA1045063A1 Rivet panel (bellow) for easy-o end rivet structure | | 01/03/1978 | US4065950 Formation of articles |
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