Safety valve and drain for boilers,申请号US19290354647-传众专利搜索

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发明名称	Safety valve and drain for boilers
摘要
申请公布号	US1765162(A)	申请公布日期	1930.06.17
申请号	US19290354647	申请日期	1929.04.12
申请人	KEENAN THOMAS J	发明人	KEENAN THOMAS J.
分类号	F22B37/54	主分类号	F22B37/54
代理机构		代理人
主权项
地址

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