Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882562 | Adaptor for coupling plural compression drivers to a common horn | Anthony John Andrews | 1989-11-21 |
| 4836327 | Sound reinforcement enclosure employing cone loudspeaker with annular central loading member and coaxially mounted compression driver | Anthony John Andrews, John Newsham | 1989-06-06 |