JR

John T. Rubbo

EN Engelhard: 1 patents #271 of 518Top 55%
Overall (All Time): #4,010,978 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4502444 Air-fuel ratio controller Kenneth R. Burns, Ronald M. Heck, John J. Early 1985-03-05