Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365690 | Spring cartridge for spring operated re-wind mechanism | Robert J. Zavatkay, George W. Kurasz | 1982-12-28 |
| 4261437 | Spring operated pull cord re-wind mechanism for engine starters | Robert J. Zavatkay, George W. Kurasz | 1981-04-14 |