| 968 / | HD | HOROLOGY |
| 975 | DD | 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] {2} |
| 976 | | .~ Acting only at one preselected time or during one adjustable time interval [G04G 15/00B] |