Donald K. Shoemaker

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Sweet Home, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Plural Frequency method and system for identifying metal objects in...
- Patent number 5,654,638
- Issue date Aug 5, 1997
- White's Electronics, Inc.
- Donald K. Shoemaker
- G01 - MEASURING TESTING
Information Patent Grant
Plural frequency method and system for identifying metal objects in...
- Patent number 5,642,050
- Issue date Jun 24, 1997
- White's Electronics, Inc.
- Donald K. Shoemaker
- G01 - MEASURING TESTING
Information Patent Grant
Static charge dissipating housing for metal detector search loop as...
- Patent number 4,862,316
- Issue date Aug 29, 1989
- White's Electronics, Inc.
- Peter T. Smith
- G01 - MEASURING TESTING
Information Patent Grant
Metal detector with circuits for automatically screening out the ef...
- Patent number 4,783,630
- Issue date Nov 8, 1988
- White's Electronics, Inc.
- Donald K. Shoemaker
- G01 - MEASURING TESTING