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发明名称
Tool guide
摘要
申请公布号
US2414292(A)
申请公布日期
1947.01.14
申请号
US19450587107
申请日期
1945.04.07
申请人
EWERT JOHN H
发明人
EWERT JOHN H.
分类号
B23B47/28
主分类号
B23B47/28
代理机构
代理人
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地址
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