Name Size Creator Creation Date Labels Comment  
PDF File 3064080.pdf 3.52 MB Shaun Ewing Nov 13, 1962 00:00
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US-3064080-A // Transmission system-selection by permutation of parity checks // Rea Wilton T. ; Roberts Allen W. // Bell Telephone Labor Inc
PDF File 3190965.pdf 3.39 MB Shaun Ewing Jun 22, 1965 00:00
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US-3190965-A // Right-of-way switching circuitry // Zarouni Alfred // Bell Telephone Labor Inc
PDF File 3002054.pdf 3.35 MB Shaun Ewing Sept 26, 1961 00:00
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US-3002054-A // Truck concentrator for telephone answering service // Krom Myron E. // Bell Telephone Labor Inc
PDF File 3180942.pdf 3.34 MB Shaun Ewing Apr 27, 1965 00:00
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US-3180942-A // Multicustomer private branch exchange // Matthews Vincent J. // Bell Telephone Labor Inc
PDF File 3047668.pdf 3.28 MB Shaun Ewing Jul 31, 1962 00:00
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US-3047668-A // Control arrangement for line concentrator // Gotthardt Manfred R. ; Lowry Terrell N. // Bell Telephone Labor Inc
PDF File 3131261.pdf 3.27 MB Shaun Ewing Apr 28, 1964 00:00
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US-3131261-A // Telephone system with selective code compression and register recycle // Avery Robert C. ; Majlinger Anthony // Bell Telephone Labor Inc
PDF File 3215784.pdf 3.24 MB Shaun Ewing Nov 02, 1965 00:00
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US-3215784-A // Multicustomer private branch exchange // Williford Oscar H. // Bell Telephone Labor Inc
PDF File 3113176.pdf 3.15 MB Shaun Ewing Dec 03, 1963 00:00
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US-3113176-A // Teletypewriter subscriber set // Doktor Theodore L. ; Parker George ; Weber Laurance A. ; Zydney Herbert M. // Bell Telephone Labor Inc
PDF File 3111624.pdf 3.14 MB Shaun Ewing Nov 19, 1963 00:00
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US-3111624-A // Automatic system for selectively substituting spare channels for failed working channels in a multichannel multilink communication system // Farkas Francis S. // Bell Telephone Labor Inc
PDF File 3073906.pdf 3.07 MB Shaun Ewing Jan 15, 1963 00:00
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US-3073906-A // Line concentrating telephone system // Lee Bock W. // Bell Telephone Labor Inc
PDF File 3157743.pdf 3.05 MB Shaun Ewing Nov 17, 1964 00:00
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US-3157743-A // Telephone call progress recording system // Avery Robert C. // Bell Telephone Labor Inc
PDF File 3129407.pdf 2.98 MB Shaun Ewing Apr 14, 1964 00:00
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US-3129407-A // Switching network control system // Paull Marvin C. // Bell Telephone Labor Inc
PDF File 3009014.pdf 2.96 MB Shaun Ewing Nov 14, 1961 00:00
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US-3009014-A // Route translator for telegraph switching // Davey James R. ; Jr. Bernard Ostendorf, ; Pace Frank P. // Bell Telephone Labor Inc
PDF File 3066633.pdf 2.92 MB Shaun Ewing Dec 04, 1962 00:00
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US-3066633-A // Signal translating systems // Harry William R. // Bell Telephone Labor Inc
PDF File 3017091.pdf 2.92 MB Shaun Ewing Jan 16, 1962 00:00
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US-3017091-A // Digital error correcting systems // Ulrich Werner // Bell Telephone Labor Inc
PDF File 3137795.pdf 2.91 MB Shaun Ewing Jun 16, 1964 00:00
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US-3137795-A // Magnetic control circuits // Newhall Edmunde E. // Bell Telephone Labor Inc
PDF File 3189692.pdf 2.90 MB Shaun Ewing Jun 15, 1965 00:00
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US-3189692-A // Automatic call transmitter // Andregg Ernest R. ; Pferd William ; Stokes Rembert R. // Bell Telephone Labor Inc
PDF File 3131262.pdf 2.87 MB Shaun Ewing Apr 28, 1964 00:00
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US-3131262-A // Telephone system with selective code compression and register recycle // Avery Robert C. // Bell Telephone Labor Inc
PDF File 2987579.pdf 2.86 MB Shaun Ewing Jun 06, 1961 00:00
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US-2987579-A // Crosspoint switching network control system // Dunlap Kermit S. // Bell Telephone Labor Inc
PDF File 3223784.pdf 2.86 MB Shaun Ewing Dec 14, 1965 00:00
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US-3223784-A // Time division switching system // Inose Hiroshi ; Kawai Yoichi ; Koono Zenya ; Takagi Mikio ; Yasuda Yasuhiko ; Yoshida Yuichi // Bell Telephone Labor Inc
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