Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4793752 | Drive-head lock washer | — | 1988-12-27 |
| 4538313 | Method of forming a joined pair of wedge-action lock washers | — | 1985-09-03 |
| D278883 | Reversible friction-ring washer | — | 1985-05-21 |
| D276309 | Lock washer assembly | — | 1984-11-13 |
| D276310 | Hex transfer washer | — | 1984-11-13 |
| D273562 | Transfer washer | — | 1984-04-24 |
| D269852 | Lock washer | — | 1983-07-26 |
| D268566 | Reversible lock washer | — | 1983-04-12 |
| 4377361 | Reversible lock washer | — | 1983-03-22 |
| D263791 | Lock washer | — | 1982-04-13 |
| D263792 | Lock washer | — | 1982-04-13 |
| D263679 | Reversible lock washer | — | 1982-04-06 |