Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5285951 | Gate valves and methods of connecting same | by Johannes Kranenburg, legal representative, Arthur A. J. M. Van Hooijdonk | 1994-02-15 |
| 4972577 | Method for manufacturing gate valves | — | 1990-11-27 |