Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4497398 | Fluid operated clutch or brake | — | 1985-02-05 |
| 4190136 | Coupling apparatus | Marcus H. Collins | 1980-02-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4497398 | Fluid operated clutch or brake | — | 1985-02-05 |
| 4190136 | Coupling apparatus | Marcus H. Collins | 1980-02-26 |