| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 8 | |
| #2 | United Kingdom | 3 | |
| #3 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Loudspeakers and microphones | |
| #2 | Telephonic communication |
| # | Name | Total Patents |
|---|---|---|
| #1 | Webb George Regester | 11 |
| #2 | Comer John J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190922580A | Improvements in and relating to Telephones and Sound Reproducing Appliances. | |
| CA123367A | Telephone transmitter | |
| GB190915657A | Improvements in Telephonic Receivers. | |
| GB190912473A | Improvements in Multiplex Microphone Transmitters. |