US PATENT SUBCLASS 968 / 382
.~ Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork (disc-shaped indicating parts subclasses 145 and 163; figures or parts thereof for indicating the time, moved by the clockwork subclass 247) [G04B 45/00B]

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968 /   HD   HOROLOGY

381  DD  TIMEPIECES OF WHICH THE INDICATING MEANS OR CASE PROVOKE SPECIAL EFFECTS, E.G., AESTHETIC EFFECTS, ETC. (ornamental shaping of dials subclass 153 special effects and pictures in general B44F) [G04B 45/00] {10}
382.~ Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork (disc-shaped indicating parts subclasses 145 and 163; figures or parts thereof for indicating the time, moved by the clockwork subclass 247) [G04B 45/00B]