Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859936 | Method of and apparatus for determining AC calibration errors and apparatus using device with AC calibration errors | — | 1989-08-22 |
| 4841170 | Temperature controlled hybrid assembly | — | 1989-06-20 |
| 4841229 | Method of and circuit for ohmmeter calibration | — | 1989-06-20 |
| 4795995 | Method and apparatus for producing electromagnetic surveillance fields | James C. Cook, II, Earl Goodrich, II | 1989-01-03 |