US PATENT SUBCLASS 968 / 975
TIMEPIECES COMPRISING MEANS TO BE OPERATED AT PRESELECTED TIMES OR AFTER PRESELECTED TIME INTERVALS (subclasses 967 and 968 take precedence; pulse delay circuits H03K 5/13; electronic time delay switches H03K 17/28; electronic time program switches which automatically terminate their operation after the program is completed H03K 17/296; electronic timers digest 802) [G04G 15/00]

Current as of: June, 1999
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968 /   HD   HOROLOGY

975TIMEPIECES COMPRISING MEANS TO BE OPERATED AT PRESELECTED TIMES OR AFTER PRESELECTED TIME INTERVALS (subclasses 967 and 968 take precedence; pulse delay circuits H03K 5/13; electronic time delay switches H03K 17/28; electronic time program switches which automatically terminate their operation after the program is completed H03K 17/296; electronic timers digest 802) [G04G 15/00] {2}
976  DD  .~> Acting only at one preselected time or during one adjustable time interval [G04G 15/00B]
977  DD  .~> For operating at a number of different times (cigar or cigarette receptacles or boxes with means for limiting the frequency of smoking A24F 15/00B) [G04G 15/00C]