Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768368 | Tool for and method of making hollow articles | Edward A. Langford | 1988-09-06 |
| 4610155 | Manufacture of article having undercut internal surface | Edward A. Langford, Reginald L. Neale | 1986-09-09 |