Tremie pipe construction,申请号US19530351712-传众专利搜索

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发明名称	Tremie pipe construction
摘要
申请公布号	US2780920(A)	申请公布日期	1957.02.12
申请号	US19530351712	申请日期	1953.04.28
申请人	MAC SILVERT	发明人	SILVERT MAC
分类号	E02D15/06	主分类号	E02D15/06
代理机构		代理人
主权项
地址

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