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发明名称
ELECTRON EMITTER
摘要
申请公布号
CA356961(A)
申请公布日期
1936.03.31
申请号
CAD356961
申请日期
申请人
THE WESTERN ELECTRIC COMPANY
发明人
JAMES RAYMOND WILSON;JOHN THEODORE ACKER;CHARLES DEY HARTMAN
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主分类号
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