NATIONAL TELEPHONE COMPANY
B90


Hand Micro-Telephones

HAND MICRO-TELEPHONE - 5 POINT

Pattern No. B90

Comprises - Granular Carbon Transmitter, Receiver (Double Pole), Cord Key, 5-way Plug and 5-way Jack.

Hand Micro-Telephone, 5-point.

This is differentially and is for use in connection with special multiple Switchboard working, other same remarks apply as in the case of Pattern No. B80.
 

 
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Last revised: July 07, 2020

FM2