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发明名称
Drilling jig
摘要
申请公布号
US2214686(A)
申请公布日期
1940.09.10
申请号
US19390307934
申请日期
1939.12.06
申请人
THE RENOLD AND COVENTRY CHAIN COMPANY LIMITED
发明人
WEEDY JAMES
分类号
B23B47/28
主分类号
B23B47/28
代理机构
代理人
主权项
地址
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