Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945276 | Transducer for arranging in a fluid, particularly for the measurement of the flow-velocity of a fluid in a pipe, by transmitting/receiving sonic pulses | Erling Hammer | 1990-07-31 |
| 4914959 | Ultrasonic flow meter using obliquely directed transducers | Erling Hammer | 1990-04-10 |