Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9822521 | Assembly outdoor balcony | Norman William Liefke | 2017-11-21 |
| 9732528 | Accessible passageway assembly | Norman William Liefke | 2017-08-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9822521 | Assembly outdoor balcony | Norman William Liefke | 2017-11-21 |
| 9732528 | Accessible passageway assembly | Norman William Liefke | 2017-08-15 |