Patent classifications
G
PHYSICS
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G09
EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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G09F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
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27/00
Combined visual and audible advertising or displaying, e.g. for public address
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G09F27/008
Sun shades, shades, hoods or louvres on electronic displays to minimise the effect of direct sun light on the display
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