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ERICSSON
TELEPHONE No. 321
 


TERMINAL-STATION TELEPHONE FOR TRUNK LINE WORK No. 321

320.jpg (18423 bytes)Similar to Telephone 320, but fitted with a 2,000 ohm bell shunted across the line, and a generator with five magnets, No. 482.

Specially used where several instruments are connected in parallel oil the same line, and all of them have to be called simultaneously when a signal is given.

Weight 20.5 lbs. Price 4 17s.
Taken from the Ericsson Telephone Catalogue 1903

 
 
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Last revised: October 01, 2019

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