Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869664 | Gas burners for gas fires | Peter Wright, Alan V. Hinton, Alan Constable, Charles Moran | 1989-09-26 |
| D303005 | Gas-fired heater | Alan M. Lloyd, Alan Constable | 1989-08-22 |
| 4829980 | Trigger device for heat pack | — | 1989-05-16 |
| 4819214 | Sonic logging system | Paul R. Gutowski, Carl H. Sondergeld | 1989-04-04 |