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David A. Birt
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Cannock, GB
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Patents Grants
last 30 patents
Information
Patent Grant
Housing assembly
Patent number
6,884,941
Issue date
Apr 26, 2005
ArvinMeritor Light Vehicle Systems (UK) Ltd.
David Alan Birt
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Lamp reflector
Patent number
5,003,447
Issue date
Mar 26, 1991
Carello Lighting plc
Haydn James
F21 - LIGHTING
Information
Patent Grant
Road vehicle headlamp
Patent number
4,575,787
Issue date
Mar 11, 1986
Lucas Industries
David A. Birt
F21 - LIGHTING
Information
Patent Grant
Diffusion cover for a motor vehicle headlamp
Patent number
4,520,434
Issue date
May 28, 1985
Lucas Industries
David A. Birt
F21 - LIGHTING
Information
Patent Grant
Vehicle headlamp
Patent number
4,305,119
Issue date
Dec 8, 1981
Lucas Industries Limited
Geoffrey R. Draper
F21 - LIGHTING
Information
Patent Grant
Vehicle headlamp
Patent number
4,246,631
Issue date
Jan 20, 1981
Lucas Industries Limited
Geoffrey R. Draper
F21 - LIGHTING
Patents Applications
last 30 patents
Information
Patent Application
Housing assembly
Publication number
20030047340
Publication date
Mar 13, 2003
David Alan Birt
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES