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发明名称
Improvements in wireline masts
摘要
申请公布号
GB2071599(A)
申请公布日期
1981.09.23
申请号
GB19800009037
申请日期
1980.03.18
申请人
CARRONHALL ENG LTD
发明人
分类号
B66C23/18;E04H12/34;E21B15/00;E21B19/00;(IPC1-7):B66D1/26
主分类号
B66C23/18
代理机构
代理人
主权项
地址
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