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David Allen Smith
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Fenton, MI, US
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last 30 patents
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Patent Grant
Spark plug copper core alloy
Patent number
6,677,698
Issue date
Jan 13, 2004
Delphi Technologies, Inc.
William J. Labarge
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
Spark plug copper core alloy
Publication number
20020074919
Publication date
Jun 20, 2002
William J. Labarge
H01 - BASIC ELECTRIC ELEMENTS
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Patent Application
High efficiency, extended life spark plug having improved firing tips
Publication number
20020074920
Publication date
Jun 20, 2002
Randolph kwok-Kin Chiu
H01 - BASIC ELECTRIC ELEMENTS
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Patent Application
High efficiency, extended life spark plug having improved firing tips
Publication number
20020070645
Publication date
Jun 13, 2002
Randolph kwok-Kin Chiu
H01 - BASIC ELECTRIC ELEMENTS