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发明名称
Remote controlled oil well hoist brake
摘要
申请公布号
US2906378(A)
申请公布日期
1959.09.29
申请号
US19570642048
申请日期
1957.02.25
申请人
SHELL DEVELOPMENT COMPANY
发明人
MCNEILL ROBERT C.
分类号
F16D65/28
主分类号
F16D65/28
代理机构
代理人
主权项
地址
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