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发明名称	BOARD PERFORATOR AND CUTTER
摘要
申请公布号	CA835705(A)	申请公布日期	1970.03.03
申请号	CAD835705	申请日期
申请人	NATIONAL GYPSUM COMPANY	发明人	LEONARD L. DONAHE;GEORGE D. WELCH
分类号		主分类号
代理机构		代理人
主权项
地址

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