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发明名称
Feeding device for percussive motors
摘要
申请公布号
US2010496(A)
申请公布日期
1935.08.06
申请号
US19340756404
申请日期
1934.12.07
申请人
INGERSOLL-RAND COMPANY
发明人
PETERS ARTHUR E.;SLATER FRED M.
分类号
E21B19/086
主分类号
E21B19/086
代理机构
代理人
主权项
地址
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