Portable derrick hoist,申请号US19460706164-传众专利搜索

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发明名称	Portable derrick hoist
摘要
申请公布号	US2443349(A)	申请公布日期	1948.06.15
申请号	US19460706164	申请日期	1946.10.28
申请人	FOSTER PEYTON J	发明人	FOSTER PEYTON J.
分类号	B66B9/16	主分类号	B66B9/16
代理机构		代理人
主权项
地址

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