| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 4 | |
| #2 | Switzerland | 3 | |
| #3 | France | 3 | |
| #4 | Canada | 2 | |
| #5 | Germany | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Electromechanical clocks | |
| #2 | Radio-controlled time-pieces | |
| #3 | Time-interval measuring |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pfeffer Vaclav | 4 |
| #2 | Vaclav Pfeffer | 3 |
| #3 | Bozena Pfefferova | 2 |
| #4 | Pfeffrova Bozena | 1 |
| #5 | Jiri Tolman | 1 |
| #6 | Oldrich Dousek | 1 |
| #7 | Viktor Jindrak | 1 |
| #8 | Pfefferova Bozena | 1 |
| #9 | Jaroslav Sixta | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1229014B | Method and device for the remote correction of clock systems | |
| US3213602A | Apparatus for remote control of a clock system | |
| CA672103A | Method of remote control of clock systems | |
| CA724372A | Method and arrangement for stabilizing the frequency of simple electric oscillators |