| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Canada | 4 | |
| #3 | United States | 4 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Typewriters | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henze Otto C W | 6 |
| #2 | Thomas Pollock Robert | 3 |
| #3 | Pollock Robert Thomas | 3 |
| #4 | Edward Nyborg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB721562A | Space controlling mechanism for multi-pitch escapement typewriter | |
| GB611472A | Shorthand typewriting machines | |
| GB587724A | Improvements relating to escapement mechanism | |
| GB593193A | Improvements in and relating to escapement mechanism | |
| US2364654A | Power control apparatus | |
| US2364653A | Escapement mechanism | |
| US2343905A | Typewriting machine | |
| US2343926A | Typewriting machine | |
| GB546160A | Phonetic typewriting machines | |
| CA445660A | Escapement mechanism | |
| CA445542A | Typewriting machine | |
| CA445659A | Power control apparatus | |
| CA445541A | Typewriting machine |