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发明名称
Drive for rotary tables
摘要
申请公布号
US2482326(A)
申请公布日期
1949.09.20
申请号
US19470777037
申请日期
1947.09.30
申请人
THE UDYLITE CORPORATION
发明人
DAVIS JOHN V.
分类号
E21B3/04;F16H7/00
主分类号
E21B3/04
代理机构
代理人
主权项
地址
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