Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881355 | Cold roll-formed structures and method and apparatus for producing same | George F. Bosl, Patrick M. Kelly, Gale E. Sauer, Joseph A. Hocevar | 1989-11-21 |
| 4876837 | Corner bead structure | Patrick M. Kelly, Robert E. Howlett, Paul A. Pomeroy | 1989-10-31 |