U.S. federal trademark · Serial No. 77318137 · Reg. No. 3658840
Telecommunications equipment used for teaching purposes, namely, oscillators, electronic digital pulse generators, multipliers, amplifiers, electronic noise filters, namely, low pass, band pass, high pass, notch, all pass, linear phase, and tunable filters, frequency/event counters, namely, electronic frequency and pulse counters, electronic and analog adder, electronic and pseudorandom digital sequence generators, and digital signal processors
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.