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发明名称
Control indicia and record data projector
摘要
申请公布号
US2753757(A)
申请公布日期
1956.07.10
申请号
US19520323204
申请日期
1952.11.29
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
ROTH ROBERT I.
分类号
主分类号
代理机构
代理人
主权项
地址
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