Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868536 | Output controller for electrotherapeutic device directed to use in a bath | — | 1989-09-19 |
| 4855649 | Single-wired switching circuit directed to limit surge into lamp | — | 1989-08-08 |
| 4841972 | Low-frequency treatment device directed to use in bath | — | 1989-06-27 |
| 4834701 | Apparatus for inducing frequency reduction in brain wave | — | 1989-05-30 |
| 4812804 | Controller for electric devices directed to use in bath | — | 1989-03-14 |
| 4800329 | Device for limiting inrush current | — | 1989-01-24 |