Name Size Creator Creation Date Labels Comment  
PDF File 3341661.pdf 28.71 MB Shaun Ewing Sept 12, 1967 00:00
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US-3341661-A // Equipment for operator served calls at an intermediate switching center // Curtis Robert B. // Bell Telephone Labor Inc
PDF File 3341662.pdf 27.15 MB Shaun Ewing Sept 12, 1967 00:00
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US-3341662-A // Equipment for operator served calls at an intermediate switching center // Cerny Louis J. ; Cesareo Orfeo ; Curtis Robert B. ; Nightingale John G. ; Jr. Frederick H. Parkinson, // Bell Telephone Labor Inc
PDF File 3408628.pdf 15.00 MB Shaun Ewing Oct 29, 1968 00:00
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US-3408628-A // Data processing system // Brass Robert L. ; Connell Joseph B. ; Harr John A. // Bell Telephone Labor Inc
PDF File 3401235.pdf 13.37 MB Shaun Ewing Sept 10, 1968 00:00
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US-3401235-A // Time division communication system // Corbin Joseph E. ; Helfrich John H. ; Heller Kenneth A. ; Nicodemus Keith L. ; Jr. George W. Smith, ; Jr. Albert E. Spencer, ; Townley Ray C. // Bell Telephone Labor Inc
PDF File 3413422.pdf 13.37 MB Shaun Ewing Nov 26, 1968 00:00
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US-3413422-A // Stage by stage switching system having translating means for deriving switching codes // Riddell George // Bell Telephone Labor Inc
PDF File 3355662.pdf 8.20 MB Shaun Ewing Nov 28, 1967 00:00
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US-3355662-A // Automated transmission measuring set // Haynie Gerald D. ; Rosenfeld Peter E. // Bell Telephone Labor Inc
PDF File 3281539.pdf 7.97 MB Shaun Ewing Oct 25, 1966 00:00
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US-3281539-A // Control system for communication switching systems // Dunlap Kermit S. ; Feiner Alexander ; Ketchledge Raymond W. ; May Harold F. // Bell Telephone Labor Inc
PDF File 3271524.pdf 7.30 MB Shaun Ewing Sept 06, 1966 00:00
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US-3271524-A // Key type common control telephone switching system // Allen Theodore E. ; Baker Walter R. ; Bidlack Richard H. ; Gardner Karl N. ; Jr. William E. Mullan, ; Ozenberger Milton E. ; Damme Louis E. Van // Bell Telephone Labor Inc
PDF File 3288919.pdf 7.07 MB Shaun Ewing Nov 29, 1966 00:00
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US-3288919-A // Data transmission system // Abbott Henry H. ; Fracassi Renato D. ; Hughes Edward G. ; Lonnquist Chester W. // Bell Telephone Labor Inc
PDF File 3394232.pdf 6.39 MB Shaun Ewing Jul 23, 1968 00:00
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US-3394232-A // Telephone system // Jr. Richard J. Jaeger, ; Riddell George // Bell Telephone Labor Inc
PDF File 3317677.pdf 6.26 MB Shaun Ewing May 02, 1967 00:00
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US-3317677-A // Remote operator's position signaling system // Chudkosky Joseph J. ; Nance Robert C. // Bell Telephone Labor Inc
PDF File 3295111.pdf 6.19 MB Shaun Ewing Dec 27, 1966 00:00
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US-3295111-A // Information storage system // Ault Cyrus F. ; Gallaher Lee E. ; Greenwood Tancred S. // Bell Telephone Labor Inc
PDF File 3248693.pdf 5.47 MB Shaun Ewing Apr 26, 1966 00:00
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US-3248693-A // Data transmission system for operation in signal environment with a high noise level // Farkas Francis S. ; Farrow Cecil W. ; Fritschi Walter W. ; Gerkeusmeier Otto F. ; Murphy Orlando J. ; Pullis George A. ; Soffel Robert O. ; Spack Edward G. // Bell Telephone Labor Inc
PDF File 3231866.pdf 5.25 MB Shaun Ewing Jan 25, 1966 00:00
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US-3231866-A // Traffic data processing system // Goetz Frank M. ; Ransom Victor L. ; Trendowski Chester R. // Bell Telephone Labor Inc
PDF File 3377434.pdf 5.24 MB Shaun Ewing Apr 09, 1968 00:00
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US-3377434-A // Switching link // Banks Harry R. ; Sorenson Gerald R. ; Walsh Henry J. ; Walsh John G. // Bell Telephone Labor Inc
PDF File 3335230.pdf 5.14 MB Shaun Ewing Aug 08, 1967 00:00
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US-3335230-A // Equipment for verifying line concentration circuit operations // Rettig John F. ; Riedel Nelson A. ; Jr. Uberto K. Stagg, ; Traumbull Allan R. // Bell Telephone Labor Inc
PDF File 3526877.pdf 5.03 MB Shaun Ewing Sept 01, 1970 00:00
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US-3526877-A // Selective calling line controller for alternatively test polling remote stations or starting remote station transmitters // David E. Carlson ; Stephen A. Dalyai ; Alfonso V. Gallina ; Edgar R. Robinson ; Clarence J. Votaw ; Peter S. Warwick // Bell Telephone Labor Inc
PDF File 3328532.pdf 4.94 MB Shaun Ewing Jun 27, 1967 00:00
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US-3328532-A // Concentrator trunk preference circuit // Trumbull Allan R. // Bell Telephone Labor Inc
PDF File 3441680.pdf 4.86 MB Shaun Ewing Apr 29, 1969 00:00
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US-3441680-A // Telephone line concentrator signaling system // Charles W. Zebe // Bell Telephone Labor Inc
PDF File 3354268.pdf 4.84 MB Shaun Ewing Nov 21, 1967 00:00
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US-3354268-A // Synchronizing circuit for concentrator signaling system // Rettig John F. ; Jr. Uberto K. Stagg, // Bell Telephone Labor Inc
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