Inventor
BONESTEEL DAVID L
US5 patents
Patents
5 patentsUS5413073AMay 9, 1995
Ultra light engine valve
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US4724000AFeb 9, 1988
Powdered metal valve seat insert
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US5619796AApr 15, 1997
Method of making an ultra light engine valve
EATON CORP20 citations91
US5458314AOct 17, 1995
Temperature control in an ultra light engine valve
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US6263849B1Jul 24, 2001
Ultra light engine valve and method of welding cap thereto
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