Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305118 | Combination wireless handset telephone and speaker/dial stand therefor | Herbert Pfeifer | 1989-12-19 |
| D305119 | Combination wireless handset telephone and speaker stand therefor | Herbert Pfeifer | 1989-12-19 |
| D305121 | Hands-free intercommunication instrument | Herbert Pfeifer, Dan Sturges | 1989-12-19 |
| D304940 | Combination telecommunication set | Herbert Pfeifer, Dan Sturges | 1989-12-05 |