Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248020 | Precast concrete stairway module | Czeslawa Zielinski | 1981-02-03 |
| 4243200 | Form pan structure | Issie M. Beer, Henry Finkel | 1981-01-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248020 | Precast concrete stairway module | Czeslawa Zielinski | 1981-02-03 |
| 4243200 | Form pan structure | Issie M. Beer, Henry Finkel | 1981-01-06 |