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发明名称
Tapping machine
摘要
申请公布号
US2567511(A)
申请公布日期
1951.09.11
申请号
US19450588488
申请日期
1945.04.16
申请人
ELDER EARL B
发明人
ELDER EARL B.
分类号
B23G1/16
主分类号
B23G1/16
代理机构
代理人
主权项
地址
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