Federhammer,申请号CH19690010531-传众专利搜索

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发明名称	Federhammer
摘要
申请公布号	CH511099(A)	申请公布日期	1971.08.15
申请号	CH19690010531	申请日期	1969.07.10
申请人	REGUS AG	发明人	HOEFFLEUR,ALBERT
分类号	E21B1/14;B25D11/04;B25D11/06;B25D15/02;E21C37/22;(IPC1-7):B25D11/00	主分类号	E21B1/14
代理机构		代理人
主权项
地址

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