Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819173 | System for preventing excessive repetition of interrupt programs in a microcomputer | — | 1989-04-04 |
| 4808920 | Method for monitoring a tachometer signal | James F. Holmes, Albrecht Sieber | 1989-02-28 |