Referenziert von|
| US6056273 | 25. Nov. 1998 | 2. Mai 2000 | | Internal sheave pulley system for bipods, tripods, or quadripods | | US7048257 | 19. Sept. 2003 | 23. Mai 2006 | Earth Tool Company, L.L.C. | Winch with telescoping mast | | US7500651 | 22. Mai 2006 | 10. März 2009 | Earth Tool Company, L.L.C. | Portable winch |
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