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发明名称
ROCK DRILL AUXILIARY CHUCK
摘要
申请公布号
CA403001(A)
申请公布日期
1942.02.24
申请号
CAD403001
申请日期
申请人
RUTHERFORD POWELL ALCOCK
发明人
RUTHERFORD POWELL ALCOCK
分类号
主分类号
代理机构
代理人
主权项
地址
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