Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876434 | Curing coatings of a moisture-curable composition | Malcolm Tillyard, Christopher M. Allen | 1989-10-24 |
| 4871213 | Excavating apparatus with adjustable breaker bar | — | 1989-10-03 |
| 4849097 | Cam actuated mineral jig | Wayne F. Crockett | 1989-07-18 |
| 4846919 | Attaching soles to shoes | Christopher M. Allen, Karl-Heinz Albert, Hubertus von Voithenberg | 1989-07-11 |