Folder Bell Telephone Quarterly / Bell Telephone Magazine

Renamed from BTQ to BTM in 1941.

Documents

Select Toggle Title Date Download
pdf 74sep BTM p10 - PhoneCenter Concept Grows (344 downloads) Popular Download (pdf, 2.42 MB)
pdf 67 BTM jul p18 - Dreyfuss - Adapting Products to People (534 downloads) Popular Download (pdf, 3.53 MB)
pdf 57Summer BTM P20 Developing Consumer Products (650 downloads) Popular Download (pdf, 623 KB)
pdf 59Winter BTM P6 Area Codes And ANC (841 downloads) Popular Download (pdf, 1.70 MB)
pdf 60Winter BTM P32 Field Trial Telephones (803 downloads) Popular Download (pdf, 245 KB)
pdf 62Winter BTM P10 101 ESS (719 downloads) Popular Download (pdf, 2.26 MB)
pdf 61Winter BTM P65 Magnetic Drum Telephone (694 downloads) Popular Download (pdf, 234 KB)
pdf 62Autumn BTM P10 All Number Calling (747 downloads) Popular Download (pdf, 1.22 MB)
pdf 62Spring BTM P17 Automatic Dialers (685 downloads) Popular Download (pdf, 902 KB)
pdf 65Autumn BTM P8 Trimline Intro (674 downloads) Popular Download (pdf, 1.44 MB)
pdf 65Summer BTM P54 Picturephone Business Experiments (630 downloads) Popular Download (pdf, 2.71 MB)
pdf 55Summer BTM P129 Designing the Telephone (500-series) (709 downloads) Popular Download (pdf, 1.20 MB)
pdf 61Spring BTM P32 Farm Interphone (1186 downloads) Popular Download (pdf, 686 KB)
pdf 61Summer BTM P10 Centrex (910 downloads) Popular Download (pdf, 1.06 MB)
pdf 63Autumn BTM P30 Touch Tone Service is Here (1024 downloads) Popular Download (pdf, 943 KB)
pdf 64Spring BTM P14 Developing Picturephone Service (518 downloads) Popular Download (pdf, 1.38 MB)
pdf 54Spring BTM P51 Answering Set Photos (770 downloads) Popular Download (pdf, 175 KB)
pdf 55Winter BTM P232 Standardized Telephone Numbers (808 downloads) Popular Download (pdf, 1.58 MB)
pdf 47Autum BTM P127 Plastics In Telephone Plant (844 downloads) Popular Download (pdf, 6.81 MB)
pdf 48Spring BTM P9 Public Telephones (862 downloads) Popular Download (pdf, 1.80 MB)

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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.

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