Thaw drain device for curbs,申请号US19490105210-传众专利搜索

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发明名称	Thaw drain device for curbs
摘要
申请公布号	US2604023(A)	申请公布日期	1952.07.22
申请号	US19490105210	申请日期	1949.07.16
申请人	MESSIAH PHILIP C	发明人	MESSIAH PHILIP C.
分类号	E01C11/22;E01H5/10	主分类号	E01C11/22
代理机构		代理人
主权项
地址

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