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US2690519A
|
|
Incandescent screen for projection tubes
|
|
US2874101A
|
|
Method of making double-sided mosaic
|
|
US2892189A
|
|
Radio guidance system
|
|
US2838671A
|
|
Automatic frequency control circuit
|
|
US2708250A
|
|
Tube assembly
|
|
US2850565A
|
|
Television camera tube arrangement with fading control utilizing an additional camera tube
|
|
US2726350A
|
|
Signal regulated power supply
|
|
US2768248A
|
|
Gain control circuit
|
|
US2818466A
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Jump compensation for continuous motion film projector
|
|
US2723347A
|
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Pulse keying circuit for power amplifiers
|
|
US2654071A
|
|
Frequency oscillation modulator
|
|
US2635391A
|
|
Method of mounting vacuum tube electrodes
|
|
US2777948A
|
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Blanking circuit for electron multiplier
|
|
US2640169A
|
|
Heated cathode electron multiplier
|
|
US2572004A
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Record guide mechanism
|
|
US2572023A
|
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Coaxial control knob
|
|
US2645499A
|
|
Phonograph spindle aperture reducer
|
|
US2653181A
|
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Miniature tube holder
|
|
US2490052A
|
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Catoptric projection system for flying spot scanning
|
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GB655485A
|
|
Astatic cathode ray tube
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