Pipe non-freeze protector,申请号US19580777003-传众专利搜索

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发明名称	Pipe non-freeze protector
摘要
申请公布号	US2937009(A)	申请公布日期	1960.05.17
申请号	US19580777003	申请日期	1958.11.28
申请人	ANDERSON ROBERT L	发明人	ANDERSON ROBERT L.
分类号	F16L53/00;F16L55/04	主分类号	F16L53/00
代理机构		代理人
主权项
地址

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