72156520
Nov 2, 1962
Jun 30, 1964
WIRE AND RADIO COMMUNICATIONS SYSTEMS USED FOR TELEPHONIC AND RADIO AMPLIFIED VOICE REINFORCEMENT IN VOICE COMMUNICATIONS, VOICE CALL AND VOICE PAGING SYSTEMS AND COMPONENTS THEREOF FOR USE WITHIN, ABOUT AND OUTSIDE OF INDUSTRIAL, COMMERCIAL, OFFICE AND INSTITUTIONAL ESTABLISHMENTS AND BUILDINGS AND THE LIKE
Housewares and Glass