Inventor · disambiguated record

John D. Keersmaekers

Also filed as: KEERSMAEKERS JOHN D

1 granted patent·80 citations·filing 1988–1988

51Inventor score

Technology areasF01M

Files withGEN MOTORS CORP1

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1 record

0188US4847768AAutomatic engine oil change indicator systemGEN MOTORS CORP·Filed 1988·Granted Jul 11, 1989·80 cites·14 claims

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