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发明名称
Method of boring and tapping
摘要
申请公布号
US2616103(A)
申请公布日期
1952.11.04
申请号
US19470727405
申请日期
1947.02.08
申请人
STECHER HENRY D
发明人
STECHER HENRY D.
分类号
B23G5/14
主分类号
B23G5/14
代理机构
代理人
主权项
地址
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