BATTERY INTERCOMMUNICATION TELEPHONES
Pattern No. B565
Comprises Hand Combination Transmitter and Receiver, Cord, Automatic Cradle-switch, Bell, Relay, Line Selector, Ringing Key, Induction Coil, and Wall Rosette and Cord.
5, 10, 15 & 20 line models.
This pattern instrument is the table form of Pattern No.
B560 and embodies all the advantages mentioned therewith.