Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D353783 | Portable instrument for measuring water depth | — | 1994-12-27 |
| D343801 | Hand-held ultrasonic contact transducer | Robert Butcher | 1994-02-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D353783 | Portable instrument for measuring water depth | — | 1994-12-27 |
| D343801 | Hand-held ultrasonic contact transducer | Robert Butcher | 1994-02-01 |