Sealing inserts for joints in concrete,申请号US19660572716-传众专利搜索

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发明名称	Sealing inserts for joints in concrete
摘要
申请公布号	US3394640(A)	申请公布日期	1968.07.30
申请号	US19660572716	申请日期	1966.08.16
申请人	DONALD F. DREHER	发明人	DREHER DONALD F.
分类号	E01C11/12	主分类号	E01C11/12
代理机构		代理人
主权项
地址

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