US PATENT SUBCLASS 968 / 208
.~.~ With indicators for biological cycles [G04B 19/26]


Current as of: June, 1999
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968 /   HD   HOROLOGY

139  DD  INDICATING BY VISUAL MEANS (by electric lamps subclass 576; indicating by acoustical means mechanically subclass 217, electrically subclass 580; acoustic signals at preselected times mechanically subclass 229, electrically subclass 580; optical time signals at preselected times mechanically subclass 244, electrically subclass 577; continuous time indication by electric means subclass 564; visible signalling arrangements G08B 5/00) [G04B 19/00] {10}
207  DD  .~ Clocks or watches with indicators for tides, for the phases of the moon, or the like (planetaria G09B 27/00 -27/06; arrangements for table reference, e.g., menstrual tables, etc., G06C 3/00) [G04B 19/26] {3}
208.~.~ With indicators for biological cycles [G04B 19/26]