The Brooke - Duveen Group, Ltd.

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Baltimore, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Perimeter security system with improved Z-bar lock for maximum degr...
- Patent number 6,145,351
- Issue date Nov 14, 2000
- The Brooke - Duveen Group, Ltd.
- Alvin S. Levenson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Z-bar security system with key and secured latch
- Patent number 5,771,720
- Issue date Jun 30, 1998
- The Brooke - Duveen Group, Ltd.
- Alvin S. Levenson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

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