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Patent applications and USPTO patent grants for Dawson; Gerald Lee.The latest application filed is for "keypad entry electronic combination lock with self-generated combination".
Patent | Date |
---|---|
Keypad entry electronic combination lock with self-generated combination Grant 5,873,276 - Dawson , et al. February 23, 1 | 1999-02-23 |
Electronic combination lock with self-contained power generation Grant 5,870,914 - Dawson February 16, 1 | 1999-02-16 |
Electronic combination lock with high security features Grant 5,847,656 - Dawson , et al. December 8, 1 | 1998-12-08 |
Keypad entry electronic combination lock with self-generated combination Grant 5,709,114 - Dawson , et al. January 20, 1 | 1998-01-20 |
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