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发明名称
Expanding reamer
摘要
申请公布号
US1839537(A)
申请公布日期
1932.01.05
申请号
US19280282375
申请日期
1928.06.02
申请人
EISENMANN FREDERICK C
发明人
EISENMANN FREDERICK C.
分类号
B23D77/04
主分类号
B23D77/04
代理机构
代理人
主权项
地址
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