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发明名称
MAGNETIC LEDGER CARD MACHINE
摘要
申请公布号
CA770308(A)
申请公布日期
1967.10.24
申请号
CAD770308
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
CHARLES S. JENKINS;NORWOOD K. PERKINS
分类号
主分类号
代理机构
代理人
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