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A history of engineering and science in the Bell System. -- [s.l.] : Bell Telephone Laboratories. -- (BA03769166) ; https://ci.nii.ac.jp/ncid/BA03769166
Classification(s): NDLC : M37 ; LCC : TK6023 ; DC19 : 621.385/0973. -- Subject Heading(s): LCSH : Telephone -- United States -- History ; LCSH : Telecommunication -- United States -- History ; LCSH : Electronics -- United States -- History ; LCSH : American Telephone and Telegraph Company -- History
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