Alfred Douglas Gronner

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White Plains, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Current transformer input system for AC conversion devices
- Patent number 4,270,061
- Issue date May 26, 1981
- The Singer Company
- Alfred D. Gronner
- G08 - SIGNALLING
Information Patent Grant
Method for achieving high accuracy performance from conventional tr...
- Patent number 4,119,958
- Issue date Oct 10, 1978
- The Singer Company
- David Julian Simon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High accuracy digital to analog resolver converter
- Patent number 4,070,665
- Issue date Jan 24, 1978
- The Singer Company
- William Joseph Glennon
- H03 - BASIC ELECTRONIC CIRCUITRY