Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885840 | Method of attaching an insulator block with a T-slot to a coil | — | 1989-12-12 |
| 4827602 | Electric heater assembly fixture and method of use | — | 1989-05-09 |
| 4807488 | Adjustable coil retainer and spreader and method of use | — | 1989-02-28 |
| 4805283 | Method for forming slit fin coils | — | 1989-02-21 |