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Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
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7/00
Television systems
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H04N7/10
Adaptations for transmission by electrical cable
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H04N7/102
Circuits therefor, e.g. noise reducers, equalisers, amplifiers
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H04N7/104
Switchers or splitters
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