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发明名称
Art of drilling
摘要
申请公布号
US2396335(A)
申请公布日期
1946.03.12
申请号
US19430494157
申请日期
1943.07.10
申请人
WESTINGHOUSE ELECTRIC COMPANY, INCORPORATED
发明人
MOLLER KASPER F.
分类号
B23B35/00;B23B51/02
主分类号
B23B35/00
代理机构
代理人
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地址
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