Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834774 | Charcoal fuel article | James E. Fay, Frederick J. Hrubecky, Doris A. Mills, Carl J. Gierke, Wilbert Heikkinen +1 more | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834774 | Charcoal fuel article | James E. Fay, Frederick J. Hrubecky, Doris A. Mills, Carl J. Gierke, Wilbert Heikkinen +1 more | 1989-05-30 |