NEW METHOD OF DRILLING PERFORATED SHELLS,申请号GB19920023497-传众专利搜索

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发明名称	NEW METHOD OF DRILLING PERFORATED SHELLS
摘要
申请公布号	GB9223497(D0)	申请公布日期	1992.12.23
申请号	GB19920023497	申请日期	1992.11.10
申请人	DION JEAN-LOUIS;CHAWLA UTTAM S.	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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