Perforating machine for clay drain tile,申请号US19630277846-传众专利搜索

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发明名称	Perforating machine for clay drain tile
摘要
申请公布号	US3183571(A)	申请公布日期	1965.05.18
申请号	US19630277846	申请日期	1963.05.03
申请人	THE HANCOCK BRICK AND TILE COMPANY	发明人	SCHMUNK JOHN D.;GILLILAND HALL E.
分类号	B28B21/92	主分类号	B28B21/92
代理机构		代理人
主权项
地址

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