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经营范围
发明名称
REGELSYSTEEM VOOR ONDERZEESE PUTKOPPEN.
摘要
申请公布号
NL7803402(A)
申请公布日期
1978.10.03
申请号
NL19780003402
申请日期
1978.03.30
申请人
TECNOMARE S.P.A. TE VENETIE, ITALIE.
发明人
分类号
E21B33/035;E21B34/16;(IPC1-7):E21B43/01
主分类号
E21B33/035
代理机构
代理人
主权项
地址
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