| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United States | 2 | |
| #3 | Switzerland | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Textiles and paper | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Mechanically computing digital computers | |
| #2 | Gearing | |
| #3 | Typewriters |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ernst Kassner | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US1773145A | Calculating machine | |
| US1609119A | Ribbon-reversing mechanism | |
| GB197642A | Improvements in or relating to apparatus for reducing the loss of power in a power transmitting gear |