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发明名称
Verifying machine for perforated records
摘要
申请公布号
US2031569(A)
申请公布日期
1936.02.18
申请号
US19340738163
申请日期
1934.08.02
申请人
MICHAEL MAUL
发明人
MAUL MICHAEL
分类号
G06K5/00
主分类号
G06K5/00
代理机构
代理人
主权项
地址
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