Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5240395 | Mold stripping equipment for manufacture of prestressed concrete poles | William A. Muller | 1993-08-31 | $539,000 |
| 5178887 | Compound fluted mold for casting prestressed concrete lamp poles | William A. Muller | 1993-01-12 | $560,000 |