HYDRAULIC PROP FOR MINE ROOF SUPPORTS,申请号PL19900284262-传众专利搜索

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发明名称	HYDRAULIC PROP FOR MINE ROOF SUPPORTS
摘要
申请公布号	PL161982(B1)	申请公布日期	1993.08.31
申请号	PL19900284262	申请日期	1990.03.12
申请人	CENTRUM MECHANIZACJI GORNICTWA "KOMAG"	发明人	KOZIELEWICZ JERZY;ORLACZ JAN;ROMANOWICZ STANISLAW;SZOPKA HUBERT
分类号	E21D15/51;(IPC1-7):E21D15/51	主分类号	E21D15/51
代理机构		代理人
主权项
地址

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