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| US4105349 | 18 Oct 1976 | 8 Ago 1978 | R B Toy Development Co. | Mechanism for forming a loop in a rope or the like | | US5101934 | 28 Dic 1990 | 7 Abr 1992 | Double 0-7, Inc. | Tree stand | | US5108096 | 24 Sep 1990 | 28 Abr 1992 | | Portable isotonic exerciser | | US6317935 | 1 Sep 1999 | 20 Nov 2001 | Rose Manufacturing Company | Life line termination |
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