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发明名称
摘要
申请公布号
JPS5510820(B2)
申请公布日期
1980.03.19
申请号
JP19750067038
申请日期
1975.06.05
申请人
发明人
分类号
F16L5/02;F24F7/04;F24F13/02
主分类号
F16L5/02
代理机构
代理人
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地址
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