Steam radiator trap,申请号US19280272101-传众专利搜索

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发明名称	Steam radiator trap
摘要
申请公布号	US1861650(A)	申请公布日期	1932.06.07
申请号	US19280272101	申请日期	1928.04.23
申请人	EDWARD L. WATTS;CHARLES R. WATTS, JR.	发明人	WATTS CHARLES R.
分类号	F24D19/08	主分类号	F24D19/08
代理机构		代理人
主权项
地址

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