ROOF PENETRATING DEVICE,申请号GB19910019684-传众专利搜索

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发明名称	ROOF PENETRATING DEVICE
摘要
申请公布号	GB9119684(D0)	申请公布日期	1991.10.30
申请号	GB19910019684	申请日期	1991.09.14
申请人	CRAWFORD HENRI;PATERSON ROBERT P.	发明人
分类号	E04D13/12;E04D13/14;E04G21/32	主分类号	E04D13/12
代理机构		代理人
主权项
地址

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