George H. Barrows

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Louisville, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Portable darkroom
- Patent number 4,083,061
- Issue date Apr 4, 1978
- George H. Barrows
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electronic calculator - register for hematology differentials
- Patent number 4,071,891
- Issue date Jan 31, 1978
- George H. Barrows
- G06 - COMPUTING CALCULATING COUNTING