United States Patent 2622112
US Patent References:
Production of fluorescence producing substances soluble in hydrocarbon oils
- - 2071521
Alkyl substituted benzene sulphonic acids and salts
- - 2232118
Lubricating oils
- - 2360446
Process for producing synthetic lubricants
- - 2518529
Production of fluorescence producing substances soluble in hydrocarbon oils
- - 2071521
Alkyl substituted benzene sulphonic acids and salts
- - 2232118
Lubricating oils
- - 2360446
Process for producing synthetic lubricants
- - 2518529
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585/456, 585/1, 208/87, 208/78, 585/448, 208/49