James Mason

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Birmingham, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Lead-in device for aiding the installation of rim-type lock cylinders
- Patent number 5,682,778
- Issue date Nov 4, 1997
- Von Duprin, Inc.
- Richard B. Cohrs
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES