| 968 / | HD | HOROLOGY |
|
| 925 | DD | VISUAL TIME- OR DATE-INDICATION MEANS [G04G 9/00] {9} |
| 954 |  | .~ By building up characters using a combination of indicating elements, e.g., by using multiplexing techniques, etc. [G04G 9/08] {5} |
| 955 | DD | .~.~> Using multiplexing techniques [G04G 9/08B] |
| 956 | DD | .~.~> Provided with date indication [G04G 9/08C] |
| 957 | DD | .~.~> Provided with means for displaying at will a time indication or a date or a part thereof [G04G 9/08D] |
| 958 | DD | .~.~> By controlling light sources, e.g., electroluminescent diodes, etc. (subclass 935 takes precedence) [G04G 9/10] {3} |
| 962 | DD | .~.~> Using light valves, e.g., liquid crystals, etc. [G04G 9/12] {4} |