Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882678 | Data sensing and processing device for scuba divers | John E. Lewis, Marvin Ackerman | 1989-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882678 | Data sensing and processing device for scuba divers | John E. Lewis, Marvin Ackerman | 1989-11-21 |