Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278306 | Load supporting roller assemblies | Jack E. Douglas | 1981-07-14 |
| 4195681 | Fly screens for windows | Jack E. Douglas | 1980-04-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4278306 | Load supporting roller assemblies | Jack E. Douglas | 1981-07-14 |
| 4195681 | Fly screens for windows | Jack E. Douglas | 1980-04-01 |