Method of lowering and raising loads by means of a jack assembly and lifting element,申请号US05/815989-传众专利搜索

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发明名称	Method of lowering and raising loads by means of a jack assembly and lifting element
摘要
申请公布号	USRE31206(E1)	申请公布日期	1983.04.12
申请号	US05/815989	申请日期	1977.07.15
申请人		发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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