Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6201442 | Amplifying circuit | Anthony James | 2001-03-13 |
| 4699535 | Writing implement for calligraphy and method of using same | — | 1987-10-13 |
| 4427883 | Optical sensing system for extensible tape rules | Ellis I. Betensky | 1984-01-24 |
| D257008 | Tape rule blade | — | 1980-09-23 |
| 4215828 | Tape measure reel lock | Richard H. Rathbun | 1980-08-05 |
| D254952 | Shears | Richard H. Rathbun | 1980-05-13 |