Improvements relating to metal pit props,申请号GB19560014314-传众专利搜索

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发明名称	Improvements relating to metal pit props
摘要
申请公布号	GB838789(A)	申请公布日期	1960.06.22
申请号	GB19560014314	申请日期	1956.05.08
申请人	GUTEHOFFNUNGSHUETTE STERKRADE AKTIENGESELLSCHAFT	发明人	PEPPLER WILHELM
分类号	E21D15/42	主分类号	E21D15/42
代理机构		代理人
主权项
地址

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