| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Aeroplanes | |
| #2 | Radio navigation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lear William Powell | 15 |
| #2 | Drake Robert L | 1 |
| #3 | Dearmond James Keller | 1 |
| #4 | Ryberg Arling W | 1 |
| #5 | Haller George Louis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA456402A | Radio direction finding system | |
| CA413835A | Electromagnetic clutch system | |
| CA426123A | Electric motor | |
| CA436113A | Variable drive control | |
| CA446150A | Reeling mechanism | |
| CA400662A | Antenna reel mechanism | |
| CA414140A | Jack screw for cowl flaps | |
| CA432861A | Multiple actuator system for airplanes | |
| CA434605A | Electromagnetic clutch | |
| CA446148A | Radio direction indicator system | |
| CA459501A | Mechanical actuator | |
| CA436116A | Speed control system | |
| CA446149A | Safety switch device | |
| CA446147A | Radio tuning mechanism | |
| CA436115A | Torque preselecting mechanism | |
| CA423309A | Antenna drag cup | |
| CA436114A | Selective driving system |