71657300
Dec 2, 1953
Aug 30, 1955
AUTOMATICALLY INITIATED SOUND REPRODUCER FOR USE IN INSTITUTIONS, BUILDINGS, ETC., SAID REPRODUCER INCLUDING AN ELECTRONIC AMPLIFIER CONNECTABLE WITH A LOUDSPEAKER AND SOURCES OF AUDIO-VIBRATIONS TO BE AMPLIFIED AND THE PARTS THEREOF FOR THE AFORESAID GOODS
Housewares and Glass