Donald E. Mercer

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Garner, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
System for controlling the use of a plurality of items
- Patent number 4,753,092
- Issue date Jun 28, 1988
- Key Kontrol Systems, Inc.
- Donald E. Mercer
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES