72109788
Dec 7, 1960
May 7, 1963
Apparatus and Parts for Electrical Fire Alarm Systems; Police Electric Signaling and Telephone Systems; Electric Public Alarm Systems for Announcing Fire, Air Raid Warnings, and Other Emergencies; Electric Watchman's Report, Supervisory and Emergency Signaling Systems; Electric Automatic Fire Detection Alarm and Emergency Signaling Systems; Electric Auxiliary Fire Alarm and Police Signaling Systems; Electrical Voice Communication and Amplifying Systems; and Variable Resistors
Housewares and Glass