John D. Duncan

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Bozeman, MT, US

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Patents Grantslast 30 patents

Information Patent Grant
Double balanced mixer using single ferrite core
- Patent number 4,119,914
- Issue date Oct 10, 1978
- Dana Corporation
- John D. Duncan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method of making a transformer assembly
- Patent number 4,052,785
- Issue date Oct 11, 1977
- Dana Corporation
- John D. Duncan
- H03 - BASIC ELECTRONIC CIRCUITRY