Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363533 | Concentric fiber optical transducer | John D. Christian, deceased, by Albert Christian, heir, by Martha R. Christian, heir, by Ann L. Ziegler, heir, by David A. Christian, heir | 1982-12-14 |
| 4354735 | Optical transducer | John D. Christian, deceased, Albert Christian, Martha R. Christian, heir, Ann L. Ziegler, heir, David Christian | 1982-10-19 |