Hartzell; Richard W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hartzell; Richard W..The latest application filed is for "pressure regulator for steam oven".
- Hartzell; Richard W. - Cary NC
| Patent | Date |
|---|---|
| Pressure regulator for steam oven Grant 6,175,100 - Creamer , et al. January 16, 2 | 2001-01-16 |
| Pressure regulator for steam oven Grant 6,107,605 - Creamer , et al. August 22, 2 | 2000-08-22 |
| Pressure regulator for steam oven Grant 5,869,812 - Creamer , et al. February 9, 1 | 1999-02-09 |
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