pdf AE - Principles of Automatic Telephony, Vol II - Mechanical, part 2 Mar51 Popular

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AE - Principles of Automatic Telephony, Vol II - Mechanical, part 2 Mar51

pp 35-50 March 1951

Part IV - Self-Aligning Plunger Lineswitch
Part V - Master Switch
Part VI - Rotary Switch
Part VII - Minor Switch
Part VIII - Impulse Repeater
INDEX

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