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GB645955A
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Improvements in electronic amplifiers
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GB649259A
|
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Improvements in modulated amplifiers
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GB637877A
|
|
Improvements in or relating to high frequency electronic valve amplifiers
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GB642310A
|
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Improvements in or relating to frequency discriminators
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GB637179A
|
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Improvements in or relating to multiple frequency oscillators
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GB606910A
|
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Improvements in or relating to frequency transposing devices
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GB420019A
|
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Process and apparatus for the electric transmission of signals by high frequency waves
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GB359631A
|
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Process of treating photographic images and the application of this process to cine-photographic films
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US1957420A
|
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Cinemato-phonographic photography
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GB351956A
|
|
Process for treating photographic pictures and application of said process to cine-phonographic films
|
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GB356658A
|
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Process for recording acoustic vibrations
|
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GB317792A
|
|
Improvements in electro-optical modulators
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GB317791A
|
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Optical process for the exploration or reconstitution of pictures and device for carrying out said process
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GB153259A
|
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Improvements in and relating to vacuum tubes for use in wireless telegraphy and telephony
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GB153553A
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New arrangement for the production of sustained electrical vibrations specially applicable to wireless telephony and telegraphy
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DE361383C
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Arrangement for generating continuous electrical oscillations
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