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发明名称
Registration indicator system
摘要
申请公布号
US2412516(A)
申请公布日期
1946.12.10
申请号
US19440564523
申请日期
1944.11.21
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
KAVANAGH JOSEPH A.
分类号
G08B5/22
主分类号
G08B5/22
代理机构
代理人
主权项
地址
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