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Duridine Trademarks
DURIDINE
CHEMICAL PREPARATION OF ACIDIC REACTION APPLIED TO METALS IN SURFACE FINISHING PROCESSES
Expired
·
April 28, 1947
·
71521423
·
DURIDINE
CLEANING AND CONDITIONING COMPOUND FOR USE IN PREPARING METAL SURFACES FOR THE RECEPTION OF PAINT
Expired
·
April 9, 1946
·
71499884
·
DURIDINE
LIQUID COMPOSITION FOR USE AS A LUBRICANT IN THE PREPARATION OF METAL FOR DRAWING OPERATIONS
Expired
·
December 19, 1944
·
71477731
·
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