James Burkhardt

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Watertown, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Synchronizable oscillator
- Patent number 4,468,637
- Issue date Aug 28, 1984
- Polaroid Corporation
- William R. Wray
- G11 - INFORMATION STORAGE
Information Patent Grant
Flutter compensator with variable oscillator
- Patent number 4,307,946
- Issue date Dec 29, 1981
- Polaroid Corporation
- William R. Wray
- G11 - INFORMATION STORAGE