Double-action noiseless float valve,申请号US19270232826-传众专利搜索

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发明名称	Double-action noiseless float valve
摘要
申请公布号	US1787601(A)	申请公布日期	1931.01.06
申请号	US19270232826	申请日期	1927.11.12
申请人	SWANBERG SWAN T	发明人	SWANBERG SWAN T.
分类号	F16K47/02	主分类号	F16K47/02
代理机构		代理人
主权项
地址

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