Russell W. Church

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Oakdale, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Dual status magnetic marker having magnetically biasable flux colle...
- Patent number 4,884,063
- Issue date Nov 28, 1989
- Minnesota Mining and Manufacturing Company
- Russell W. Church
- G08 - SIGNALLING
Information Patent Grant
Dual status magnetic marker having magnetically biasable flux colle...
- Patent number 4,825,197
- Issue date Apr 25, 1989
- Minnesota Mining and Manufacturing Company
- Russell W. Church
- G08 - SIGNALLING