13 DEVICES IN THE NATURE OF A WATER LEVEL RAISING AND CONTROLLING COMBINATION CONSISTING OF A FLEXIBLE RUBBER DISC AND AN UPSTANDING TUBE FITTED THERETHROUGH
Trademark Events
Jul 17, 1995
Expired Sec. 9
Jun 23, 1980
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.