73343185
Dec 24, 1981
Jan 4, 1983
Consumer-Installed Telephone Accessories-Namely, Hold Buttons; Telephone Privacy Modules; Electronic Ringers; Earpiece Volume Amplifiers; Couplers, Wall Plates, Jacks and Jack Adapters for Cords Having Modular Plugs; and, Cords Having Modular Plugs
Electrical and Scientific Apparatus