Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04H
BROADCAST COMMUNICATION
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60/00
Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
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H04H60/68
Systems specially adapted for using specific information, e.g. geographical or meteorological information
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H04H60/70
using geographical information, e.g. maps, charts or atlases
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