Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10415255 | Handrail and railing assembly | Norman William Liefke | 2019-09-17 |
| 10184267 | Supporting mechanism for glass fence | Norman William Liefke | 2019-01-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10415255 | Handrail and railing assembly | Norman William Liefke | 2019-09-17 |
| 10184267 | Supporting mechanism for glass fence | Norman William Liefke | 2019-01-22 |