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发明名称
PNEUMATIC HAMMER ROCK DRILL
摘要
申请公布号
MY6500008(A)
申请公布日期
1965.12.31
申请号
MY19650000008
申请日期
1965.12.31
申请人
INGERSOLL-RAND COMPANY
发明人
WILLIAM ANDREW MORRISON
分类号
E21B4/14;(IPC1-7):E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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