Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617474 | Telephone handset having a latch-receiving opening in an enlarged inlet opening of a card-receiving slot | Albert Ditzig | 1997-04-01 |
| D339803 | Handset holder | Albert Ditzig | 1993-09-28 |
| D339562 | Computer monitor for access to telephone and computer related services in commercial aircraft | Albert Ditzig | 1993-09-21 |
| 5173936 | Telephone handset holder assembly | Albert Ditzig | 1992-12-22 |
| 5157722 | Holder and latching mechanism for a hand-held telephone | Edward J. Hollowed | 1992-10-20 |
| D327064 | Telephone handset | Albert Ditzig | 1992-06-16 |
| 5109412 | Hand-held pay station telephone dispenser and cord retractor | Edward J. Hollowed | 1992-04-28 |
| 4977592 | Dispenser and unlatching mechanism for a hand-held pay station telephone | Edward J. Hollowed | 1990-12-11 |
| 4965824 | Pay station telephone and dispenser for a commercial conveyance | Edward J. Hollowed | 1990-10-23 |
| 4881254 | Hand-held pay telephone and holder | Edward J. Hollewed, John D. Goeken | 1989-11-14 |
| 4811387 | Holder and credit-card unlatching mechanism for a hand-held telephone | Edward J. Hollewed, John D. Goeken | 1989-03-07 |