John A. Gallagher

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Barrington, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic focusing mechanism
- Patent number 4,005,442
- Issue date Jan 25, 1977
- Bell & Howell Company
- John A. Gallagher
- G02 - OPTICS
Information Patent Grant
Photoreceptor assembly for automatic focusing system
- Patent number 3,984,846
- Issue date Oct 5, 1976
- John A. Gallagher
- G02 - OPTICS