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发明名称
GELEIDINGSTOESTEL VOOR HET VOEREN VAN EEN WERKTUIG DOOR EEN LEIDINGSYSTEEM.
摘要
申请公布号
NL153972(B)
申请公布日期
1977.07.15
申请号
NL19650013428
申请日期
1965.10.18
申请人
CAMERON IRON WORKS, INC., HOUSTON, TEXAS, VER. ST. V. AM.
发明人
分类号
E21B23/08;E21B23/12;E21B43/01;(IPC1-7):E21B41/00;F17D3/08
主分类号
E21B23/08
代理机构
代理人
主权项
地址
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