23 DIESEL ENGINES, PARTS THEREOF, AND ACCESSORIES-NAMELY, FANS, STARTING MOTORS, OIL, WATER, HYDRAULIC, AND VACUUM PUMPS, AND POWER TAKEOFF UNITS THEREFOR
AT LEAST AS EARLY AS NOVEMBER 1937 AS TOTHE WORDS "DETROIT DIESEL." AT LEAST AS EARLY AS NOVEMBER 1937 AS TOTHE WORDS "DETROIT DIESEL." NO CLAIM IS MADE TO THE WORD "DIESEL" APRT FROM THE MARK AS SHOWN.