| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | United States | 3 | |
| #5 | South Africa | 3 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Fire-fighting | |
| #3 | General building constructions | |
| #4 | Air-conditioning | |
| #5 | Lighting device details |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shepherd C | 3 |
| #2 | Shepherd Charles G | 3 |
| #3 | Shepherd C G | 2 |
| #4 | Ch Shepherd | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA7007460B | Lighting unit structure and arrangement comprising a plurality of such structures | |
| CA919147A | Lighting unit structure and arrangement comprising a plurality of such structures | |
| US3665838A | Air chamber assembly | |
| US3590544A | Support structure | |
| US3654849A | Lighting unit structure and arrangement comprising a plurality of such structures |