Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5440953 | Knife sharpener | Fred R. Gangelhoff, Joel T. Gangelhoff | 1995-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5440953 | Knife sharpener | Fred R. Gangelhoff, Joel T. Gangelhoff | 1995-08-15 |