Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799307 | Anchor apparatus for a tendon in prestressed concrete slab | Gordon H. Reigstad, A. Norris Breivik | 1989-01-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799307 | Anchor apparatus for a tendon in prestressed concrete slab | Gordon H. Reigstad, A. Norris Breivik | 1989-01-24 |