Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853602 | System for using synchronous secondaries of a linear motor to biaxially draw plastic films | John J. Keegan, Jr. | 1989-08-01 |
| 4825111 | Linear motor propulsion system | John J. Keegan, Jr. | 1989-04-25 |