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发明名称
Converter punching apparatus
摘要
申请公布号
US1999640(A)
申请公布日期
1935.04.30
申请号
US19320619977
申请日期
1932.06.29
申请人
ROYSE GROVER C
发明人
ROYSE GROVER C.
分类号
F27D25/00
主分类号
F27D25/00
代理机构
代理人
主权项
地址
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