Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459345 | Stationary and moving magnets forming a magnetic brush developer apparatus and method | — | 1984-07-10 |
| 4442790 | Magnetic brush development apparatus | John P. Swapceinski, Leon A. Rose, Donald G. McKeown, Thomas K. Hilbert | 1984-04-17 |