HYDRAULIC SYSTEM OF SELF-ADVANCING ROOF SUPPORTS,申请号PL19880274538-传众专利搜索

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发明名称	HYDRAULIC SYSTEM OF SELF-ADVANCING ROOF SUPPORTS
摘要
申请公布号	PL274538(A1)	申请公布日期	1990.03.19
申请号	PL19880274538	申请日期	1988.09.05
申请人	KOPALNIA WEGLA KAMIENNEGO STAS	发明人	ORZWCHOWSKI STANISLAW;LIDUCHOWSKI LEONARD;PODSIADLO HENRYK;BEM FELIKS
分类号	E21D;E21D23/16;(IPC1-7):E21D/	主分类号	E21D
代理机构		代理人
主权项
地址

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