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Impruvol Trademarks
IMPRUVOL
ADDITIVE WHICH IS AN OXIDATION INHIBITOR AND A STABILIZER FOR MOTOR FUEL, PARTICULARLY AVIATION GASOLINE
Expired
·
April 7, 1950
·
71595381
·
IMPRUVOL 20
OXIDATION INHIBITOR FOR ELECTRICAL INSULATING OILS AND TRANSFORMER OILS
Expired
·
November 19, 1949
·
71588100
·
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