| 968 / | HD | HOROLOGY |
| 801 | DD | APPARATUS WHICH CAN BE SET AND STARTED TO MEASURE OFF PREDETERMINED OR ADJUSTABLY FIXED TIME INTERVALS WITHOUT DRIVING MECHANISMS, E.G., EGG TIMER, ETC. (electric time and time-program switches H01H 43/00) [G04F 1/00] {3} |
| 803 | | .~ By consuming prefixed quantities of materials, e.g., by burning candle, etc. [G04F 1/02] |