Etançon de mines en plusieurs parties,申请号BE19620618618-传众专利搜索

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发明名称	Etançon de mines en plusieurs parties
摘要
申请公布号	BE618618(A1)	申请公布日期	1962.10.01
申请号	BE19620618618	申请日期	1962.06.06
申请人	KARL GERLACH;HANS GERLACH	发明人	KARL GERLACH;HANS GERLACH
分类号	E21D15/502;(IPC1-7):E21C	主分类号	E21D15/502
代理机构		代理人
主权项
地址

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