Hydraulic reciprocating motion device,申请号US19340711522-传众专利搜索

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发明名称	Hydraulic reciprocating motion device
摘要
申请公布号	US2069122(A)	申请公布日期	1937.01.26
申请号	US19340711522	申请日期	1934.02.16
申请人	WEAVER MIDGE M	发明人	WEAVER MIDGE M.
分类号	E21B1/26;F01L25/06	主分类号	E21B1/26
代理机构		代理人
主权项
地址

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