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发明名称
摘要
申请公布号	JPS4721212(U)	申请公布日期	1972.11.09
申请号	JP19710011451U	申请日期	1971.02.24
申请人		发明人
分类号	F16L3/08;F16L3/10;(IPC1-7):F16L3/10	主分类号	F16L3/08
代理机构		代理人
主权项
地址

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