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发明名称
Graph plotter
摘要
申请公布号
US2912160(A)
申请公布日期
1959.11.10
申请号
US19520308758
申请日期
1952.09.10
申请人
NORTHROP CORPORATION
发明人
MAGNUSON VERNON P.;HAGEN GLENN E.;WILLIAMS CHARLES R.
分类号
G06F7/66;G06K15/22
主分类号
G06F7/66
代理机构
代理人
主权项
地址
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