Operating valve and piston,申请号US19570691089-传众专利搜索

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发明名称	Operating valve and piston
摘要
申请公布号	US3025871(A)	申请公布日期	1962.03.20
申请号	US19570691089	申请日期	1957.10.18
申请人	MONARCH EQUIPMENT CO.	发明人	ROTH GRANT V. W.;SAARI FRANK E.
分类号	B63C11/22;F16K31/122	主分类号	B63C11/22
代理机构		代理人
主权项
地址

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