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发明名称
Dustless drilling apparatus
摘要
申请公布号
US3368633(A)
申请公布日期
1968.02.13
申请号
US19650502073
申请日期
1965.10.22
申请人
TRADE TOOLS, INC.
发明人
MOATES DAVID G.
分类号
B23Q1/00;B28D1/04
主分类号
B23Q1/00
代理机构
代理人
主权项
地址
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