9 Electronic Transducers for Use in Evaluating Frequency, Power, Energy, and Phase of Electricity; and Pulse Registers for Use in Counting Electrical Pulses
Trademark Events
Mar 15, 2003
Cancelled Sec. 8 (10-Yr)/Expired Section 9
Feb 4, 1988
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.