Float and safety valve,申请号US19280271731-传众专利搜索

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发明名称	Float and safety valve
摘要
申请公布号	US1788251(A)	申请公布日期	1931.01.06
申请号	US19280271731	申请日期	1928.04.21
申请人	ROSENOW EDWARD C	发明人	ROSENOW EDWARD C.
分类号	F16K31/20	主分类号	F16K31/20
代理机构		代理人
主权项
地址

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