Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213545 | Expanding bellows for expulsion tank | John Z. Colt, Jr., Robert J. Szpakowski | 1980-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213545 | Expanding bellows for expulsion tank | John Z. Colt, Jr., Robert J. Szpakowski | 1980-07-22 |