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发明名称
摘要
申请公布号
JPS5244045(B2)
申请公布日期
1977.11.04
申请号
JP19730125294
申请日期
1973.11.09
申请人
发明人
分类号
F16L3/20;F16L3/215;F16L55/02
主分类号
F16L3/20
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代理人
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地址
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