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发明名称
Card support
摘要
申请公布号
US2299566(A)
申请公布日期
1942.10.20
申请号
US19410384363
申请日期
1941.03.20
申请人
THE MCBEE COMPANY
发明人
CONNOR ROGER;NEVIN DONALD A.
分类号
G06K21/04
主分类号
G06K21/04
代理机构
代理人
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地址
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