9 CONTROL DEVICES WHICH PERFORM AUTOMATIC ELECTRIC SWITCHING IN RESPONSE TO THE SENSING BY THE DEVICES OF THE PRESENCE AND ABSENCE OF LIQUIDS OR SOLIDS AT SELECTED LOCATIONS
Trademark Events
Jun 17, 1996
Expired Sec. 9
Aug 4, 1981
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.