Valve,申请号US19300491660-传众专利搜索

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发明名称	Valve
摘要
申请公布号	US1888223(A)	申请公布日期	1932.11.22
申请号	US19300491660	申请日期	1930.10.28
申请人	DAUPHIN DEPOSIT TRUST COMPANY	发明人	FRANTZ GROVER C.
分类号	F24H9/12	主分类号	F24H9/12
代理机构		代理人
主权项
地址

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