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Patent applications and USPTO patent grants for Poff; Steve.The latest application filed is for "lock, key blank, and key of a hierarchical lock system".
Patent | Date |
---|---|
Lock, key blank, and key of a hierarchical lock system Grant 7,788,956 - Field , et al. September 7, 2 | 2010-09-07 |
Lock, Key Blank, And Key Of A Hierarchical Lock System App 20090301148 - Field; Peter H. ;   et al. | 2009-12-10 |
Lock, key blank, and key of a hierarchical lock system Grant 7,552,608 - Field , et al. June 30, 2 | 2009-06-30 |
Lock, Key Blank, And Key Of A Hierarchical Lock System App 20080250830 - FIELD; Peter H. ;   et al. | 2008-10-16 |
Key blank and key Grant 7,412,860 - Field , et al. August 19, 2 | 2008-08-19 |
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