Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856123 | Toilet apparatus for use by bed ridden patients | D. Grant Henderson, Grenville K. Yuill | 1989-08-15 |
| 4632194 | Self-propelled saverdrill | Stuart A. Averill, Lyle W. Hokanson | 1986-12-30 |