headphones, microphones, pick-ups, namely, electrical pickups for use with musical instruments; phono cartridges, namely, electrical phonograph record turntable cartridges

Test Computers, Audio Test Computers and Measuring Computers

[Stereo and High Fidelity Sound Recording Equipment for the Production of Phonograph Records-Namely,] [ Microphones, ] [ Control Units, Tape ] [ Recorders, Tape ] [ Reproducers Used for the Transcription of Sound from Tape to Lacquer Discs, Cutting Heads, Cutting Lathes and Galvanic Apparatus for the Production of Matrices and Stampers from Lacquer Discs for Pressing Phonograph Records; ] Equipment for the Reproduction of Sound from Tape and Phonograph Records-Namely, Stereo and High Fidelity...