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发明名称
摘要
申请公布号
JPS5825141(B2)
申请公布日期
1983.05.25
申请号
JP19790133304
申请日期
1979.10.16
申请人
SEIBU POLYMER KASEI KK
发明人
KAIYA KATSUTO
分类号
F16L27/10;E02B5/00;E03F3/04;E21D11/04;E21D11/08
主分类号
F16L27/10
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代理人
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