31 REFRIGERATION EQUIPMENT-NAMELY, REFRIGERANT LIQUID LEVEL INDICATORS FOR USE AS A PART OF REFRIGERATING EQUIPMENT, FILTERS FOR REMOVING WATER AND OTHER FOREIGN MATERIALS FROM REFRIGERANT FLUIDS, AND REPAIR PARTS THEREFOR
Trademark Events
Jan 18, 1993
Expired Sec. 9
Sep 19, 1977
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.