Explore Books on
telephone switchboards

Swiftwater

By Alisa Weis

Telephone switchboard operator

By United States. Army. Signal Corps

Slaves of the switchboard of doom

By Bradley W. Schenck

The switchgear and switchboard apparatus industry

By Morton Research Corporation.

Principi di commutazione telefonica

By Salvatore Barbieri

PBX and telephone technique

By Mary Louise Lynott

Les Systèmes Crossbar en téléphonie automatique ..

By Roger Légaré

Ren gong dian hua yuan li he wei hu

By

Ortsamtstechnik

By Grimm, Friedrich.

Electronic control in crossbar telephone exchanges

By Budapest Telecommunication Company.

Ren gong dian hua jiao huan

By Kuangshi Yu

Private Branch Telephone Exchanges

By Stromberg-Carlson Telephone Manufacturing Co

The Lorimer Presto-phone system (patented)

By Canadian Independent Telephone Co. Ltd

Electrical goods and radio apparatus

By Sears, Roebuck and Company

Hold the Line Please

By Sally Southall

Machine switching

By William Horatio Freedman

New communications building serves the telephone needs of the nation's first university

By

Mine telephones

By Stromberg-Carlson Telephone Mfg. Co

Dominion Telephone Manufacturing Company Limited

By Dominion Telephone Manufacturing Company.

The evolution of a switchboard

By Abbott, Arthur Vaughan

Monocord Switchboards of Units Type EE-2 and Type EE-2A and Monocord Switchboard Operator's Set Type EE-64

By United States. Army. Signal Corps.

How to operate the switchboard

By Leonard Seymour Friedman

Hold the line please

By Sally Southall

An analysis of domestic and foreign PABX markets

By Dittberner Associates, Inc.