WEDGE-SHAPED MULTISECTIONAL ROOF BEAM,申请号PL19810233674-传众专利搜索

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发明名称	WEDGE-SHAPED MULTISECTIONAL ROOF BEAM
摘要
申请公布号	PL134638(B1)	申请公布日期	1985.08.31
申请号	PL19810233674	申请日期	1981.11.02
申请人		发明人
分类号	E21D;E21D17/06;(IPC1-7):E21D17/06	主分类号	E21D
代理机构		代理人
主权项
地址

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