Bagby; John F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bagby; John F..The latest application filed is for "quadruplex recordings with ferrite heads resembling quadruplex recordings with metal heads".
- Bagby; John F. - Encinitas CA
- Bagby; John F. - Glendora CA
| Patent | Date |
|---|---|
| Quadruplex recordings with ferrite heads resembling quadruplex recordings with metal heads Grant 4,398,226 - Seim , et al. August 9, 1 | 1983-08-09 |
| Single-track video ferrite record/reproduce head and manufacturing method therefor Grant 4,017,899 - Bagby April 12, 1 | 1977-04-12 |
| Bonding An Insulator To An Inorganic Member Grant 3,778,896 - Bagby December 18, 1 | 1973-12-18 |
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