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发明名称
Dental drill
摘要
申请公布号
US2799934(A)
申请公布日期
1957.07.23
申请号
US19550550252
申请日期
1955.12.01
申请人
BOWEN & COMPANY, INC.
发明人
KERN GEORGE R.
分类号
A61C1/05
主分类号
A61C1/05
代理机构
代理人
主权项
地址
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