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发明名称
Photographic recorder
摘要
申请公布号
US2714841(A)
申请公布日期
1955.08.09
申请号
US19500203747
申请日期
1950.12.30
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DEMER FREDERICK M.;MORK RALPH G.
分类号
主分类号
代理机构
代理人
主权项
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