Name Size Creator Creation Date Labels Comment  
PDF File 3291913.pdf 4.69 MB Shaun Ewing Dec 13, 1966 00:00
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US-3291913-A // Telephone system signal converter // Hanna Edward E. ; Kettley Arthur W. ; Lowry Terrell N. // Bell Telephone Labor Inc
PDF File 3377432.pdf 4.48 MB Shaun Ewing Apr 09, 1968 00:00
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US-3377432-A // Telephone switching system // Abbott Henry H. ; Fette Charles J. ; Jr. Henry A. Meise, // Bell Telephone Labor Inc
PDF File 3495220.pdf 4.08 MB Shaun Ewing Feb 10, 1970 00:00
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US-3495220-A // Process control system including hardware element status map in memory // David A. Lawson ; Ralph W. Peterson ; Alfred A. Stockert // Bell Telephone Labor Inc
PDF File 3342944.pdf 4.08 MB Shaun Ewing Sept 19, 1967 00:00
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US-3342944-A // Multichannel intercom system with common signaling channel // Barbato Robert E. ; Eargle Marvin H. ; Mceowen James R. ; Trent Dale W. ; Wells George W. // Bell Telephone Labor Inc
PDF File 3253088.pdf 4.05 MB Shaun Ewing May 24, 1966 00:00
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US-3253088-A // Central office multicustomer private branch exchange system // Fisher Donald R. ; Gesing Eugene J. ; Koster Frederick H. ; Kowalinski Raymond J. // Bell Telephone Labor Inc
PDF File 3346700.pdf 4.03 MB Shaun Ewing Oct 10, 1967 00:00
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US-3346700-A // Private branch exchange automatic number identification system // Anderson Harold P. ; Mcmahon Frank J. ; Scharg George A. ; Winter Harry // Bell Telephone Labor Inc
PDF File 3271565.pdf 3.94 MB Shaun Ewing Sept 06, 1966 00:00
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US-3271565-A // System for determining the orbital parameters of a terrestrial satellite // Blackman Ralph B. // Bell Telephone Labor Inc
PDF File 3231679.pdf 3.87 MB Shaun Ewing Jan 25, 1966 00:00
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US-3231679-A // Telephone switching network // Lowry Terrell N. // Bell Telephone Labor Inc
PDF File 3268669.pdf 3.81 MB Shaun Ewing Aug 23, 1966 00:00
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US-3268669-A // Common control for remote telephone switch units // Vigliante Frank S. ; Williams Robert D. ; Seley Eldon L. // Bell Telephone Labor Inc
PDF File 3335231.pdf 3.71 MB Shaun Ewing Aug 08, 1967 00:00
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US-3335231-A // Switching system using momentary onhook signalling in answered trunk to detect abandoned call // Gray Preston R. ; Wedding Paul L. // Bell Telephone Labor Inc
PDF File 3249918.pdf 3.60 MB Shaun Ewing May 03, 1966 00:00
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US-3249918-A // Control word use in bit-by-bit data communication system // Schwenzfeger Edward E. ; Zarouni Alfred // Bell Telephone Labor Inc
PDF File 3261111.pdf 3.58 MB Shaun Ewing Jul 19, 1966 00:00
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US-3261111-A // Training equipment for telephone operators // Johnston Donald F. ; Kroning Robert D. ; Orost Joseph // Bell Telephone Labor Inc
PDF File 3230314.pdf 3.52 MB Shaun Ewing Jan 18, 1966 00:00
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US-3230314-A // Universal remote telephone line concentrator // Krom Myron E. // Bell Telephone Labor Inc
PDF File 3374463.pdf 3.35 MB Shaun Ewing Mar 19, 1968 00:00
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US-3374463-A // Shift and rotate circuit for a data processor // Iii David Muir // Bell Telephone Labor Inc
PDF File 3381095.pdf 3.25 MB Shaun Ewing Apr 30, 1968 00:00
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US-3381095-A // Camp-on circuit // Baker William E. ; Stefano Vincent R. De ; Jr. Henry A. Meise, // Bell Telephone Labor Inc
PDF File 3410966.pdf 3.23 MB Shaun Ewing Nov 12, 1968 00:00
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US-3410966-A // System for remote testing of telephone subscribers' lines // Davies Chauncey R. // Bell Telephone Labor Inc
PDF File 3364313.pdf 3.21 MB Shaun Ewing Jan 16, 1968 00:00
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US-3364313-A // Link connector and control equipment for routine and priority connections to operator positions // Scheinman Arnold H. // Bell Telephone Labor Inc
PDF File 3534338.pdf 3.20 MB Shaun Ewing Oct 13, 1970 00:00
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US-3534338-A // Computer graphics system // Carl Christensen ; Elliot N. Pinson // Bell Telephone Labor Inc
PDF File 3426158.pdf 3.15 MB Shaun Ewing Feb 04, 1969 00:00
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US-3426158-A // Remote switch unit in a common control telephone system // Thomas E. Browne ; Wilmer B. Gaunt Jr. ; Karl Goldschmidt ; Frank S. Vigliante ; Oscar H. Williford ; Robert K. York // Bell Telephone Labor Inc
PDF File 3244815.pdf 3.11 MB Shaun Ewing Apr 05, 1966 00:00
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US-3244815-A // Selective signaling system // Anderson Harold P. ; Baker Donn ; Field James M. ; Jr. Lawrence A. Hohmann, ; Maul Lloyd L. ; Wells George W. // Bell Telephone Labor Inc
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