Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737631 | Movement detector with tapering kaleidoscopic mirrors and method of installing such a detector | Christiaan Martens | 2004-05-18 |
| 4257161 | Dry-shaving apparatus | Wijtes Bergsma | 1981-03-24 |