Ballantyne; John R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ballantyne; John R..The latest application filed is for "housing for a video cassette playback machine".
- Ballantyne; John R. - Pacific Palisades CA
- Ballantyne; John R. - Sun Valley CA
| Patent | Date |
|---|---|
| Housing for a video cassette playback machine Grant 4,458,813 - Tushinsky , et al. July 10, 1 | 1984-07-10 |
| Loudspeaker grille Grant D243,253 - Ballantyne February 1, 1 | 1977-02-01 |
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