| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Australia | 1 | |
| #3 | Belgium | 1 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | Denmark | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | United States | 1 | |
| #12 | WIPO (World Intellectual Property Organization) | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Electrical machinery and energy | |
| #3 | Control | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Static electricity | |
| #3 | Teaching materials | |
| #4 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Powell Cecil | 4 |
| #2 | Noguera Joseph | 2 |
| #3 | Powell David James | 2 |
| #4 | Chave Donald Maynard | 2 |
| #5 | Powell C | 1 |
| #6 | Powell D | 1 |
| #7 | Chave D | 1 |
| #8 | Seshiru Baueru | 1 |
| #9 | Chave D M | 1 |
| #10 | Powell D J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8903742D0 | Cassette cleaner | |
| GB1596577A | Enhanced sound reproduction from gramophone records | |
| GB1475917A | Removal of dirt dust and the like from gramophone records | |
| GB938689A | Improvements in mechanical pictorial devices | |
| GB891740A | Improved hand-operable roller cleaning device |