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发明名称
Air-line oiler
摘要
申请公布号
US1783522(A)
申请公布日期
1930.12.02
申请号
US19280326059
申请日期
1928.12.14
申请人
THE CLEVELAND ROCK DRILL COMPANY
发明人
RENFER JOHN E.
分类号
F16N7/34
主分类号
F16N7/34
代理机构
代理人
主权项
地址
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