John E. Campbell

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Needham, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Alkaline fluid photographic processing composition containers
- Patent number 4,303,750
- Issue date Dec 1, 1981
- Polaroid Corporation
- John E. Campbell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rupturable photographic processing alkaline fluid container
- Patent number 4,303,751
- Issue date Dec 1, 1981
- Polaroid Corporation
- John E. Campbell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY