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发明名称
Photographic statistical machine
摘要
申请公布号
US2220474(A)
申请公布日期
1940.11.05
申请号
US19380208086
申请日期
1938.05.14
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
BRYCE JAMES W.
分类号
B41B27/00;G03B27/46
主分类号
B41B27/00
代理机构
代理人
主权项
地址
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