Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604650 | Rotary head drum having head-affixing, transformer-affixing, and bearing-engaging surfaces lying in the same plane | Tong M. Chang | 1997-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604650 | Rotary head drum having head-affixing, transformer-affixing, and bearing-engaging surfaces lying in the same plane | Tong M. Chang | 1997-02-18 |