Erspamer; James R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Erspamer; James R..The latest application filed is for "semi-automatic self-contained magnetic azimuth detector calibration apparatus and method".
- Erspamer; James R. - Phoenix AZ
| Patent | Date |
|---|---|
| Semi-automatic self-contained magnetic azimuth detector calibration apparatus and method Grant 4,143,467 - Erspamer , et al. March 13, 1 | 1979-03-13 |
| Compensated toroidal accelerometer Grant 3,992,951 - Erspamer , et al. November 23, 1 | 1976-11-23 |
| Two-cycle compensator for flux valve heading repeater system Grant 3,938,257 - Erspamer February 17, 1 | 1976-02-17 |
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