William J. Johnston

Follow

Person

Flint, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for determining the rotational position of a m...
- Patent number 5,489,842
- Issue date Feb 6, 1996
- Delco Electronics Corporation
- Raymond Lippmann
- G01 - MEASURING TESTING
Information Patent Grant
Air core gauge method and apparatus with reduced power dissipation
- Patent number 5,347,213
- Issue date Sep 13, 1994
- Delco Electronics Corp.
- William J. Johnston
- G01 - MEASURING TESTING