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Dick Ropiequet: Difference between revisions
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==Patents== | ==Patents== | ||
* [http://www.google.com/patents/US3355620 US3355620: Pulse counter tube employing voltage feedback from target to beam deflection electrodes isolated from any d. c. reference voltage] (Filed 2 Dec 1963, granted 28 Nov 1967) | |||
==Links== | ==Links== | ||