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发明名称
Improved drill testing and/or drilling machine
摘要
申请公布号
GB506971(A)
申请公布日期
1939.06.07
申请号
GB19380020077
申请日期
1938.07.07
申请人
ARTHUR SAMUEL GEORGE KENYON
发明人
分类号
B23B41/00;B23B47/18
主分类号
B23B41/00
代理机构
代理人
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地址
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