David M. Cherba

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Pontiac, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Programmable dual stack relay ladder diagram line solver with shift...
- Patent number 4,247,909
- Issue date Jan 27, 1981
- Westinghouse Electric Corp.
- John C. Bradley
- G05 - CONTROLLING REGULATING
Information Patent Grant
Programmable dual stack relay ladder diagram line solver and progra...
- Patent number 4,247,901
- Issue date Jan 27, 1981
- Westinghouse Electric Corp.
- Jonathan F. Martin
- G05 - CONTROLLING REGULATING
Information Patent Grant
Programmable dual stack relay ladder line solver and programming pa...
- Patent number 4,244,034
- Issue date Jan 6, 1981
- Westinghouse Electric Corp.
- David M. Cherba
- G05 - CONTROLLING REGULATING