Drain tile support block,申请号US19650438228-传众专利搜索

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发明名称	Drain tile support block
摘要
申请公布号	US3330121(A)	申请公布日期	1967.07.11
申请号	US19650438228	申请日期	1965.03.09
申请人	TAIT ANDREW C	发明人	TAIT ANDREW C.
分类号	E02B11/00	主分类号	E02B11/00
代理机构		代理人
主权项
地址

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