Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908521 | Method of manufacturing multilayer plasterboard | John James Bradshaw, Arthur G. T. Ward | 1999-06-01 |
| 5714032 | Method of manufacturing multilayer plasterboard and apparatus therefor | John James Bradshaw, Arthur G. T. Ward | 1998-02-03 |