37 Aircraft maintenance, modification and repair; installation, maintenance, modification and repair of avionics equipment and avionics instrumentation, namely, navigational equipment, radar equipment, diaphragm, bourdon tube, aneroid, optical, or mechanically driven centrifugal instruments used on or in the operation of aircraft, tachometers, airspeed indicators, pressure gauges drift sights, magnetic compasses, altimeters, self-synchronous and electrical-indicating instrumentation, remote indicating instruments, cylinder head temperature gauges, instrumentation using gyroscopic principles and motivated by air pressure or electrical energy, automatic pilot control units, turn and bank indicators, directional gyros, flux gate and gyrosyn compasses, and, instrumentation whose operation depends on electron tubes, transistors, capacitance type quantity gauges, system amplifiers, and engine analyzers, and communication equipment, namely, radio transmitting and/or receiving equipment used in an aircraft to send or receive communications in flight
Trademark: 86456958
