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发明名称
摘要
申请公布号	FR2480820(B1)	申请公布日期	1983.05.20
申请号	FR19800008735	申请日期	1980.04.18
申请人	NEYRPIC	发明人
分类号	E02B7/20;(IPC1-7):E02B7/20;E02B7/26;E02B7/30;F16B31/00	主分类号	E02B7/20
代理机构		代理人
主权项
地址

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