| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Audio-visual technology | |
| #3 | Consumer goods | |
| #4 | Measurement | |
| #5 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Typewriters | |
| #2 | Special information storage | |
| #3 | Spring or inertia motors | |
| #4 | Mechanically-driven clocks | |
| #5 | Buttons, pins and buckles | |
| #6 | Stamps | |
| #7 | Office accessories |
| Publication | Filing date | Title |
|---|---|---|
| GB270285A | Improvements in spring driving mechanism for talking machines | |
| DE417060C | Type cylinder typewriter | |
| DE446282C | Type strips for the production of type cylinders | |
| DE413386C | Typewriter frame made of sheet metal |