Patent classifications
A
HUMAN NECESSITIES
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A63
SPORTS; GAMES; AMUSEMENTS
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A63H
TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
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A63H19/02
Locomotives; Motor coaches
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A63H19/14
Arrangements for imitating locomotive features, e.g. whistling, signalling, puffing
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