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经营范围
发明名称
SKRETOWE URZADZENIE PROWADNICZE
摘要
申请公布号
PL205687(A1)
申请公布日期
1978.11.20
申请号
PL19780205687
申请日期
1978.03.30
申请人
CONTINENTAL OIL CO
发明人
分类号
E21F13/02;E21F17/02;(IPC1-7):E21F/
主分类号
E21F13/02
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代理人
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地址
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