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发明名称
摘要
申请公布号	FR2458020(B1)	申请公布日期	1983.01.14
申请号	FR19790014093	申请日期	1979.06.01
申请人	GAZ DE FRANCE	发明人
分类号	F16L1/19;(IPC1-7):F16L1/04;B63B27/04;B66C13/06	主分类号	F16L1/19
代理机构		代理人
主权项
地址

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