| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 5 | |
| #2 | Switzerland | 4 | |
| #3 | Germany | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Control | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Measuring electric variables | |
| #2 | Measuring speed and acceleration | |
| #3 | Elevators and escalators | |
| #4 | Special measuring | |
| #5 | Registering devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Frantisek Barvitius | 4 |
| #2 | Narodni Podnik Metra | 3 |
| #3 | Slavik Josef | 1 |
| #4 | Josef Slavik | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2614902A | Autographic recorder |