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Folder WECo Manual Switching

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pdf CO Equipment Training, Lesson 6, PBX Systems Popular

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CO_Equip_Lesson_6_PBX_tci_bm.pdf

1. History and Development
2. General Description of PBXs
    506, 551, 552A, 605A, 606A, 701A, 702A, 711A, 740, 750A, 755A, Braille PBX

Contributed by John Novack

pdf WE Idle Trunk And Position Indicating Equipments Aug28 Popular

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Idle_Trunk_and_Position_Indicating_Equipments_Apr29_tci.pdf

WE Idle Trunk And Position Indicating Equipments Aug28

August 1928, reprinted April 1929.  Contributed by John Novack.

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Thanks for new documents from Shane Young, David Brown, the Connections Museum, Paul Fassbender, Lou Maffei, Rick Thoensen. Sheila Flory, Tom Hesson, Jim Hurtle, Ed Palazzo, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), Rick Walsh, and Jeff Lamb.

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