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Patents Grants
last 30 patents
Information
Patent Grant
Optical systems for the display of visual images
Patent number
4,056,827
Issue date
Nov 1, 1977
Redifon Limited
Archer Michael Spooner
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Visual display apparatus
Patent number
4,048,653
Issue date
Sep 13, 1977
Redifon Limited
Archer Michael Spooner
G02 - OPTICS
Information
Patent Grant
Optical systems
Patent number
4,027,949
Issue date
Jun 7, 1977
Redifon Limited
Daniel Richard Lobb
G02 - OPTICS
Information
Patent Grant
Video ground-based flight simulation apparatus
Patent number
4,016,658
Issue date
Apr 12, 1977
Redifon Limited
Arthur Paul Porter
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Scanning devices
Patent number
3,973,826
Issue date
Aug 10, 1976
Redifon Limited
Daniel Richard Lobb
G02 - OPTICS
Information
Patent Grant
Compound optical system with image tilt compensation
Patent number
3,972,584
Issue date
Aug 3, 1976
Redifon Limited
Daniel Richard Lobb
G02 - OPTICS
Information
Patent Grant
Scanning devices
Patent number
3,972,583
Issue date
Aug 3, 1976
Redifon Limited
Daniel Richard Lobb
G02 - OPTICS
Information
Patent Grant
Optical system for the display of visual images
Patent number
3,932,702
Issue date
Jan 13, 1976
Redifon Limited
Melville Leslie Shelley
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
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