| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | France | 7 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Furniture and games | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Stringed musical instruments | |
| #2 | Automatic musical instruments | |
| #3 | Office furniture | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henry Collen Robert | 8 |
| #2 | Collen Robert Henry | 7 |
| #3 | Mason Edward John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9819971D0 | Improvements of piano frames | |
| US1827563A | Pneumatically operated pianoforte | |
| US1773662A | Pneumatically-operated player mechanism for musical instruments | |
| US1690925A | Pianoforte | |
| US1731158A | Pianoforte | |
| US1699561A | Pianoforte | |
| US1752234A | Pianoforte | |
| US1664191A | Pianoforte | |
| US1607441A | Drawer-lifting support | |
| GB190602042A | Improvements in and relating to Fuel Supply to Boiler and other Furnaces. |