Redifon Limited

Organization

London, EN

Organizations

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Patents Grantslast 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

Redifon Limited

Organization

Patents Grantslast 30 patents

Optical systems for the display of visual images

Visual display apparatus

Optical systems

Video ground-based flight simulation apparatus

Scanning devices

Compound optical system with image tilt compensation

Scanning devices

Optical system for the display of visual images