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Patent US 4142128A: Difference between revisions
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(Created page with "{{Patent |Office=US |Number=4142128A |Title=Box-shaped scan expansion lens for cathode ray tube |Inventors=Conrad Odenthal |Company=Tektronix Inc |Filing date=1977-04-18 |Gran...") |
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|Number=4142128A | |Number=4142128A | ||
|Title=Box-shaped scan expansion lens for cathode ray tube | |Title=Box-shaped scan expansion lens for cathode ray tube | ||
|Company=Tektronix Inc | |||
|Inventors=Conrad Odenthal | |Inventors=Conrad Odenthal | ||
|Filing date=1977-04-18 | |Filing date=1977-04-18 | ||
|Grant date=1979-02-27 | |Grant date=1979-02-27 | ||
}} | }} | ||