Dispositif de liaison élastique pour des profilés emboîtés et en forme de gouttière, plus spécialement pour des cadres de soutènement des galeries de mines,申请号FRD67430-传众专利搜索

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发明名称	Dispositif de liaison élastique pour des profilés emboîtés et en forme de gouttière, plus spécialement pour des cadres de soutènement des galeries de mines
摘要
申请公布号	FR67430(E)	申请公布日期	1958.03.07
申请号	FRD67430	申请日期	1955.01.14
申请人	BOCHUMER EISENHUETTE HEINTZMANN & CO	发明人
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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