SHIELD FOR A GATE END BEING ENDANGERED WITH ROCK AND GAS EXPULSIONS,申请号PL19880272169-传众专利搜索

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发明名称	SHIELD FOR A GATE END BEING ENDANGERED WITH ROCK AND GAS EXPULSIONS
摘要
申请公布号	PL272169(A2)	申请公布日期	1989.02.06
申请号	PL19880272169	申请日期	1988.04.28
申请人	GLOWNY INSTYTUT GORNICTWA	发明人	KOBIELA ZBIGNIEW;KRZYSTOLIK PAWEL;KOZLOWSKI BOLESLAW;ZAWADZKI TADEUSZ;FREIHER BERNARD;STRACZEK ADAM;TRZCIONKA JANUSZ;ZAWIERUCHA MARIA;MLODECKI JAN;KOTYNIA CZESLAW
分类号	E21D;E21D19/04;(IPC1-7):E21D/	主分类号	E21D
代理机构		代理人
主权项
地址

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