US PATENT SUBCLASS 368 / 42
.~ Motion controlled by timepiece

Current as of: June, 1999
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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

41  DF  WITH MEMORANDUM HOLDER OR ERASABLE WRITING SURFACE {3}
42.~ Motion controlled by timepiece

DEFINITION

Classification: 368/42

Motion controlled by timepiece:

(under subclass 41) Subject matter wherein the holder or surface is movable, movement thereof being under control of the time measuring instrument.