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发明名称
FREMGANGSMAADE OG APPARAT TIL FREMSKAFFELSE AF VISKOSE RAAOLIER
摘要
申请公布号
DK706388(D0)
申请公布日期
1988.12.20
申请号
DK19880007063
申请日期
1988.12.20
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.J.
发明人
THOMAS, DAVID WILLIAM;CORBY, ROBERT SCOTT
分类号
E21B41/02;E21B43/12;(IPC1-7):E21B43/12
主分类号
E21B41/02
代理机构
代理人
主权项
地址
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