Stellwagen; Frank W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stellwagen; Frank W..The latest application filed is for "low power synchronous motor and line cord therefor".
- Stellwagen; Frank W. - Stamford CT
- Stellwagen; Frank W. - Mesa AZ
| Patent | Date |
|---|---|
| Low power synchronous motor and line cord therefor Grant 3,988,639 - Preiser , et al. October 26, 1 | 1976-10-26 |
| Quartz Crystal Controlled Stepper Motor Grant 3,737,746 - Cielaszyk , et al. June 5, 1 | 1973-06-05 |
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