Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D281766 | Sensor unit | Fred M. Mills | 1985-12-17 |
| D280607 | Sensor unit | Fred M. Mills | 1985-09-17 |
| 4287639 | Door closer permitting free-swing and regular-closer modes | — | 1981-09-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D281766 | Sensor unit | Fred M. Mills | 1985-12-17 |
| D280607 | Sensor unit | Fred M. Mills | 1985-09-17 |
| 4287639 | Door closer permitting free-swing and regular-closer modes | — | 1981-09-08 |