Combined valve and switch mechanism,申请号US19310511817-传众专利搜索

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发明名称	Combined valve and switch mechanism
摘要
申请公布号	US1976559(A)	申请公布日期	1934.10.09
申请号	US19310511817	申请日期	1931.01.28
申请人	SAMUEL HELFAND	发明人	HELFAND SAMUEL
分类号	F24C3/10;F24C3/12;H01H3/02	主分类号	F24C3/10
代理机构		代理人
主权项
地址

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