AIR STOPPING TWO-WING DOORS,申请号PL19860261222-传众专利搜索

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发明名称	AIR STOPPING TWO-WING DOORS
摘要
申请公布号	PL261222(A1)	申请公布日期	1987.06.29
申请号	PL19860261222	申请日期	1986.08.28
申请人		发明人
分类号	E21F;E21F1/14;(IPC1-7):E21F/	主分类号	E21F
代理机构		代理人
主权项
地址

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