| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Switzerland | 4 | |
| #3 | France | 4 | |
| #4 | Canada | 3 | |
| #5 | Germany | 2 | |
| #6 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Campbell Rouel R | 4 |
| #2 | Benson Bernard S | 2 |
| #3 | Rouel Rufus Campbell | 2 |
| #4 | Campbell Rouel Rufus | 1 |
| #5 | Bernard S Benson | 1 |
| #6 | Campbell R | 1 |
| #7 | Rouel R Campbell | 1 |
| #8 | Benson B | 1 |
| #9 | August Robert | 1 |
| #10 | Hearon Guy H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA696832A | Automatic angle control device for panoramic camera | |
| CA699142A | Removable film casette | |
| CA746251A | Panoramic film viewer |