Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882926 | Roll forming notches in a thin-wall power transmission member | — | 1989-11-28 |
| 4877107 | Mobile scaffolding system and scaffold support | — | 1989-10-31 |
| 4869343 | Railing assembly for scaffold | — | 1989-09-26 |
| 4856616 | Railing support clamp for scaffold | — | 1989-08-15 |
| 4852375 | Rack assembly for forming splines in thin-wall member | James T. Killop | 1989-08-01 |
| 4819468 | Roll forming notches in a thin-wall power transmission member | — | 1989-04-11 |
| 4805735 | Scaffolding net system | — | 1989-02-21 |