Valve,申请号US19300502885-传众专利搜索

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发明名称	Valve
摘要
申请公布号	US1861420(A)	申请公布日期	1932.05.31
申请号	US19300502885	申请日期	1930.12.17
申请人	THE NATIONAL SUPPLY COMPANY	发明人	MAHAN JOSEPH R.
分类号	F04B53/10	主分类号	F04B53/10
代理机构		代理人
主权项
地址

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