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发明名称
摘要
申请公布号	NL7213915(A)	申请公布日期	1973.04.17
申请号	NL19720013915	申请日期	1972.10.13
申请人		发明人
分类号	F16L27/04;F16L19/08;F16L25/12;F16L27/02;F16L27/06;F16L37/00;F16L37/12;(IPC1-7):F16L37/12	主分类号	F16L27/04
代理机构		代理人
主权项
地址

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