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发明名称
Mathematical squaring device of the electron tube type
摘要
申请公布号
US2428541(A)
申请公布日期
1947.10.07
申请号
US19440549112
申请日期
1944.08.11
申请人
PHILCO CORPORATION
发明人
BAGLEY MICHAEL T.
分类号
G06G7/20
主分类号
G06G7/20
代理机构
代理人
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