| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 18 | |
| #2 | Switzerland | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Casings and printed circuits | |
| #2 | Dynamo-electric machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mcdonald Leslie Raymond | 19 |
| #2 | Leslie Raymond Mcdonald | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB107382A | Improvements in Electric Motors. | |
| CA118021A | Electric vibro-massage machine | |
| CA272960A | Electron tube shield | |
| CA233086A | Stereoscopic x-ray apparatus | |
| CA271517A | Display apparatus | |
| CA273806A | Electricity condenser | |
| CA274532A | Display apparatus | |
| CA258522A | Display apparatus | |
| CA274534A | Display apparatus | |
| CA272961A | Electron tube shield | |
| CA274533A | Display apparatus | |
| CA258524A | Display apparatus | |
| CA258523A | Advertisement displaying mechanism | |
| CA258518A | Display apparatus | |
| CA298141A | Display apparatus | |
| CA258520A | Display apparatus | |
| CA258521A | Display apparatus | |
| CA258525A | Selective information apparatus | |
| CA295702A | Airplane launching appliance |