Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5115957 | Apparatus for reinforcing fibrous duct | Edward John Marx, Robert R. Coleman | 1992-05-26 |
| 4781510 | Insulation board feeder | Robert R. Coleman | 1988-11-01 |
| 4235652 | Method of using a low profile heat sealing iron | Ray Brooks | 1980-11-25 |