Patent classifications
G
PHYSICS
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G08
SIGNALLING
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G08G
TRAFFIC CONTROL SYSTEMS
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1/00
Traffic control systems for road vehicles
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G08G1/09
Arrangements for giving variable traffic instructions
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G08G1/0962
having an indicator mounted inside the vehicle, e.g. giving voice messages
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G08G1/0967
Systems involving transmission of highway information, e.g. weather, speed limits
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G08G1/096766
where the system is characterised by the origin of the information transmission
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G08G1/096783
where the origin of the information is a roadside individual element
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