Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623762 | Static discharge snubber circuit for silicon controlled rectifier (SCR) type telephone hold devices | Eduard F. B. Boeckmann | 1986-11-18 |
| 4492823 | Dual timing circuit for telephone subscriber's instrument | Albert G. Teater | 1985-01-08 |