Automatic gas shut-off valve,申请号US19300434204-传众专利搜索

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发明名称	Automatic gas shut-off valve
摘要
申请公布号	US1917619(A)	申请公布日期	1933.07.11
申请号	US19300434204	申请日期	1930.03.08
申请人	UTTERBACK FRED C;WALTER WARRICK GEORGE	发明人	UTTERBACK FRED C.;WARRICK GEORGE WALTER
分类号	F16K17/00	主分类号	F16K17/00
代理机构		代理人
主权项
地址

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