Grubenausbau mittels hydraulischer Stempel,申请号DE1949P036036-传众专利搜索

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发明名称	Grubenausbau mittels hydraulischer Stempel
摘要
申请公布号	DE885985(C)	申请公布日期	1953.11.19
申请号	DE1949P036036	申请日期	1949.03.08
申请人	ZAPP EWALD	发明人	ZAPP EWALD
分类号	E21D15/44;E21D15/58	主分类号	E21D15/44
代理机构		代理人
主权项
地址

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