Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015118 | Mounting means | Michael J. B. Sewell, Margaret I. Sewell, Charles P. B. Sewell | 1991-05-14 |
| 4739836 | Arrangement for use in surface treatment | Michael J. B. Sewell, Stephen C. B. Sewell, Charles P. B. Sewell, Margaret I. Sewell | 1988-04-26 |