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发明名称
摘要
申请公布号	FR2441046(B1)	申请公布日期	1984.04.13
申请号	FR19780031454	申请日期	1978.11.07
申请人	SOMEFRAN EXPL BREVETS MEFRAN	发明人
分类号	E01F13/02;(IPC1-7):E06B11/00;E04H17/16	主分类号	E01F13/02
代理机构		代理人
主权项
地址

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