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| More topics under "B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls" (7,320) |
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| B21H 1 - Making articles shaped as bodies of revolution (2,244) | | B21H 3 - Making helical bodies or bodies having parts of helical shape (2,057) | | B21H 5 - Making gear wheels (1,111) | | B21H 7 - Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons (1,122) | | B21H 8 - Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects (465) | | B21H 9 - Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass (321) |
| Patents for B21H - Making particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls (8) |
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| 04/22/2008 | US7360386 Sweep unit assembly | | 07/07/2005 | WO2005037458A3 Sweep unit assembly | | 06/09/2005 | US20050120767 Sweep unit assembly | | 04/28/2005 | WO2005037458A2 Sweep unit assembly | | 04/28/2005 | CA2541430A1 Sweep unit assembly | | 12/21/1993 | CA1325326C Method of producing a steel strip having a thickness of less than 10 mm | | 02/07/1990 | CN1039371A Process for manufacturing steel bands with thickness less than 10 mm | | 07/21/1988 | DE3700785A1 Macerate, process for its preparation and its use as medicine |
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