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发明名称
Expansion cutter
摘要
申请公布号
US1861928(A)
申请公布日期
1932.06.07
申请号
US19300424670
申请日期
1930.01.30
申请人
LOEFFELMAN LEO J
发明人
LOEFFELMAN LEO J.
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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