21 ELECTRICAL SIGNAL AMPLIFYING AND/OR RELAYING APPARATUS OPERATED BY PHENOMENA DETECTED PHOTOELECTRICALLY, AND ELECTRICAL EQUIPMENT HOUSINGS AND PARTS AND ACCESSORIES FOR THE FOREGOING APPARATUS
Trademark Events
Aug 16, 1993
Expired Sec. 9
Jul 18, 1978
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.