Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885564 | Power line carrier communication system for monitoring refrigerated containers | Arthur A. Anderson, David A. Christiansen, Dannis R. Johnson, Laurence R. Brickner, Robert G. Colclaser III +1 more | 1989-12-05 |