Profil fuer den eisernen Grubenausbau in Ring- oder Bogenform nach Art eines Belageisens,申请号DE1932T040345D-传众专利搜索

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发明名称	Profil fuer den eisernen Grubenausbau in Ring- oder Bogenform nach Art eines Belageisens
摘要
申请公布号	DE711157(C)	申请公布日期	1941.09.26
申请号	DE1932T040345D	申请日期	1932.03.06
申请人	HEINRICH TOUSSAINT;BOCHUMER EISENHUETTE HEINTZMANN & CO.	发明人
分类号	E21D11/20	主分类号	E21D11/20
代理机构		代理人
主权项
地址

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