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发明名称
VALVE FOR ROCK DRILLS
摘要
申请公布号
CA354945(A)
申请公布日期
1935.12.24
申请号
CAD354945
申请日期
申请人
THE INGERSOLL-RAND COMPANY
发明人
GEORGE WILLIAM ULSHIZER
分类号
主分类号
代理机构
代理人
主权项
地址
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