| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 6 | |
| #2 | Germany | 3 | |
| #3 | United States | 2 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Typewriters |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kraus Hans | 4 |
| #2 | Heindl Petters | 1 |
| #3 | Hans Kraus | 1 |
| #4 | Gerstendoerfer Raimund | 1 |
| #5 | Johann Kraus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1953561A | Device for locking the platen of typewriters | |
| US1931199A | Device for locking the platen of typewriters |