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Patent applications and USPTO patent grants for Aston; Walter J..The latest application filed is for "lock, key and combination of lock and key".
Patent | Date |
---|---|
Lock, key and combination of lock and key Grant 5,351,042 - Aston September 27, 1 | 1994-09-27 |
Electromagnetically activated mechanisms Grant 5,014,030 - Aston May 7, 1 | 1991-05-07 |
Electronic key-operable lock and key thereof Grant 4,866,962 - Aston , et al. September 19, 1 | 1989-09-19 |
Electronic security device Grant 4,396,914 - Aston August 2, 1 | 1983-08-02 |
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