Portable lifting jack,申请号US19460649715-传众专利搜索

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发明名称	Portable lifting jack
摘要
申请公布号	US2470105(A)	申请公布日期	1949.05.17
申请号	US19460649715	申请日期	1946.02.23
申请人	THE MARATHON MANUFACTURING CO.	发明人	MURPHY MERRILL M.
分类号	B66F3/12	主分类号	B66F3/12
代理机构		代理人
主权项
地址

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