US PATENT SUBCLASS 968 / 953
.~.~.~ Using mechano-optical means [G04G 9/06G]


Current as of: June, 1999
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968 /   HD   HOROLOGY

925  DD  VISUAL TIME- OR DATE-INDICATION MEANS [G04G 9/00] {9}
942  DD  .~ By selecting desired character out of a number of characters or by selecting indicating elements the position of which represent the time, e.g., by using multiplexing techniques, etc. [G04G 9/02] {5}
950  DD  .~.~ Using light valves, e.g., liquid crystals, etc. [G04G 9/06] {3}
953.~.~.~ Using mechano-optical means [G04G 9/06G]