Liaison à charge limitée d'éléments de soutènement de galeries de mines,申请号FR19610851917-传众专利搜索

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发明名称	Liaison à charge limitée d'éléments de soutènement de galeries de mines
摘要
申请公布号	FR1279077(A)	申请公布日期	1961.12.15
申请号	FR19610851917	申请日期	1961.02.07
申请人		发明人	JASPER KARL THEODOR
分类号	E21D11/22	主分类号	E21D11/22
代理机构		代理人
主权项
地址

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