Mobile mine roof support,申请号US19620194386-传众专利搜索

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发明名称	Mobile mine roof support
摘要
申请公布号	US3218812(A)	申请公布日期	1965.11.23
申请号	US19620194386	申请日期	1962.05.14
申请人	RHEINSTAHL WANHEIM G.M.B.H.	发明人	WILKENLOH WILHELM
分类号	E21D23/00	主分类号	E21D23/00
代理机构		代理人
主权项
地址

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