Pressure fluid controlling device,申请号US19430479455-传众专利搜索

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发明名称	Pressure fluid controlling device
摘要
申请公布号	US2437856(A)	申请公布日期	1948.03.16
申请号	US19430479455	申请日期	1943.03.17
申请人	INGERSOLL-RAND COMPANY	发明人	LINCOLN PAUL A.
分类号	E21B19/086	主分类号	E21B19/086
代理机构		代理人
主权项
地址

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