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ES159237A1
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Valve of time travel
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ES156692A1
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A phase inversion amplifier assembly
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ES155856A1
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Capacitive goniometer
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ES153569A1
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Electrostatic multiplier
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ES153587A1
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A television arrangement with a mosaic screen on both faces
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ES153571A1
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Receiver for the reception of radio or television emissions
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ES153573A1
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Cathode ray valve
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ES153572A1
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Cathode ray valve
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ES153589A1
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Valve receiver of images for television
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ES153574A1
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Arrangement with cathodic ray valve for oscillographs or television
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ES153588A1
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Braun tube
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ES153538A1
|
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Television station to carry out a complete television service
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ES153546A1
|
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Provision for the magnetic maneuver of the cathodic ray
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ES153545A1
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Connection provision to automatically regulate the sensitivity of reception in television receivers
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ES153541A1
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Connection disposal for distortion of current or voltage
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ES153529A1
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Device for regulating luminous intensity, especially for television
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ES153524A1
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|
Improvements in the construction of recipients in the form of a light bulb, especially for valves in the form of discharge
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ES153523A1
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Multiplier of secondary electrons
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ES153522A1
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Multiplier of secondary electrons
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ES153530A1
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Cathode ray valve
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