Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4263713 | Apparatus for actuating and extracting a tube guide-expander | Edward H. Smith, Robert W. Shaffer | 1981-04-28 |
| 4261094 | Heat exchanger tube and tube sheet location sensing device | Kenneth S. Gerkey, Raymond P. Castner | 1981-04-14 |
| 4216569 | Method for installing a tube in a heat exchanger tube sheet | Robert W. Shaffer, Edward H. Smith, Regis R. Vollmer | 1980-08-12 |