9 ELECTRICAL SEISMIC APPLIANCES-NAMELY, SEISMIC DATA COMPOSITORS AND RECORDERS; AND ELECTRICAL APPARATUS-NAMELY, ELECTRICAL AMPLIFIERS, CONVERTERS AND REGISTERS
Trademark Events
Oct 9, 1995
Expired Sec. 9
Jun 4, 1980
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.