Patent classifications
A
HUMAN NECESSITIES
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A63
SPORTS; GAMES; AMUSEMENTS
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A63F
CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
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9/00
Games not otherwise provided for
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A63F9/06
Patience; Other games for self-amusement
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A63F9/10
Two-dimensional [2D] jig-saw puzzles
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A63F2009/1016
the pieces having additional connections, i.e. in addition to the connection by the jig-saw shapes
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A63F2009/1022
to the display board
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