Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6227553 | Attachment assembly for use on flat roofs | — | 2001-05-08 |
| 6039150 | Building guard rail scaffold assembly | — | 2000-03-21 |
| 5718305 | Safety harness attachment post assembly | — | 1998-02-17 |
| 5515941 | Building roof eave mounting guard structures | Clifford W. Chaston | 1996-05-14 |
| 5377958 | Safety railing system | — | 1995-01-03 |
| 4957185 | Roof scaffold | Claude J. F. Courchesne | 1990-09-18 |