| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Switzerland | 3 | |
| #3 | Denmark | 3 | |
| #4 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Telephonic communication |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mountstephen Edred Rabjohn | 8 |
| #2 | Spence Alexander George | 5 |
| #3 | Wood William John | 5 |
| #4 | Alexander George Spence | 3 |
| #5 | William John Wood | 3 |
| #6 | Edred Rabjohn Mountstephen | 3 |
| #7 | Wood Driftslender William John | 1 |
| #8 | Spence Alexander Georges | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA399285A | Burglar and fire alarm | |
| CA394039A | Burglar and fire alarm |