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发明名称
Multisheave block
摘要
申请公布号
GB1126337(A)
申请公布日期
1968.09.05
申请号
GB19650041390
申请日期
1965.09.29
申请人
DRESSER INDUSTRIES, INC.
发明人
MARKS WILLIAM MILES;ASHWORTH JAMES EDWARD;BRACKIN WAYNE LEROY
分类号
B66D3/06;E21B19/02
主分类号
B66D3/06
代理机构
代理人
主权项
地址
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