Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6840645 | Light tube system for distributing sunlight or artificial light singly or in combination | Walter A. Johanson | 2005-01-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6840645 | Light tube system for distributing sunlight or artificial light singly or in combination | Walter A. Johanson | 2005-01-11 |