Class 019
Non-Metallic Building Material Products
Class 020
Furniture Products
Electronic loudspeaker type intercommunication equipments with selective device by buttons, keys, rotary or dial switches, desk or wall type, for the purpose of intercommunicating between departments or parts of a building or concern; telephone type intercommunication equipments, using a handset containing a microphone and an earphone, with selective device by buttons, keys, rotary or dial switches, desk or wall type, for the purpose of intercommunicating between departments or parts of a building or concern; sound reinforcing and public address equipments namely electronic amplifiers to amplify signals from microphones, pick-up cartridges, radio tuners or recorders; loudspeakers and enclosures for same, to reproduce such amplified signals; for purpose of message or music diffusion for domestic or commercial applications.
