Barrett; Jack E. J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Barrett; Jack E. J..The latest application filed is for "door operator system using counter circuit for determining limit positions".
- Barrett; Jack E. J. - Waupaca WI
- Barrett; Jack E. J. - Appleton WI
| Patent | Date |
|---|---|
| Door operator system using counter circuit for determining limit positions Grant 4,234,833 - Barrett November 18, 1 | 1980-11-18 |
| System For Selection And Remote Control With Sequential Decoding Having Plural Decoding Stages Grant 3,675,205 - Mereen , et al. July 4, 1 | 1972-07-04 |
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