pdf A128.820 Toll Switchboard No. 3C or 3CL, Issue 1, April 1950 - Charts Popular
By Anonymous 5037 downloads
3C_3CL_SC-OS-RM.pdf
Sequence charts, operational sketches and associated reference material. (Central Office Maintenance)
New User?
Read the articles under "Introduction" in the black menu bar above.
Recent Contributors
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.
Please send a file to add your name to this list!
Who's online
We have 645 guests online