Patent US 3873878A: Revision history

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31 August 2021

25 August 2021

  • curprev 14:4514:45, 25 August 2021‎ Peter talk contribs‎ 222 bytes +222‎ Created page with "{{Patent |Office=US |Number=3873878A |Title=Electron gun with auxilliary anode nearer to grid than to normal anode |Inventors=Conrad Odenthal |Company=Tektronix Inc |Filing da..."
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