Name Size Creator Creation Date Labels Comment  
PDF File 3401354.pdf 275 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401354-A // Frequency stabilized oscillator // Seidel Harold // Bell Telephone Labor Inc
PDF File 3401357.pdf 555 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401357-A // Electromagnetic wave amplifier oscillator and modulator // D'Asaro Lucian A. // Bell Telephone Labor Inc
PDF File 3401359.pdf 326 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401359-A // Transistor switching modulators and demodulators // Becker Floyd K. // Bell Telephone Labor Inc
PDF File 3401360.pdf 709 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401360-A // Phased transducer arrays for elastic wave transmission // Bois Erich O. Schulz-Du // Bell Telephone Labor Inc
PDF File 3401366.pdf 516 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401366-A // Switching device responsive to a rotating magnet // Paholek Edward V. ; Wasserman Norman // Bell Telephone Labor Inc
PDF File 3401367.pdf 506 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401367-A // Magnetically latching type relay containing a flux limiting construction // Grau Thomas G. ; Marsh Virgil L. // Bell Telephone Labor Inc
PDF File 3401379.pdf 1.90 MB Shaun Ewing Sept 10, 1968 00:00
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US-3401379-A // False code generator // Prell Edward M. ; Rehert Allen F. ; Rigazio Livio A. // Bell Telephone Labor Inc
PDF File 3401381.pdf 317 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401381-A // Waffle iron memory with magnetic tape overlay // Bobeck Andrew H. ; Smith James L. // Bell Telephone Labor Inc
PDF File 3401382.pdf 399 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401382-A // Magnetic waffle iron memory structure // Bobeck Andrew H. // Bell Telephone Labor Inc
PDF File 3401383.pdf 956 kB Shaun Ewing Sept 10, 1968 00:00
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US-3401383-A // Transducer displacement detector // Ault Cyrus F. // Bell Telephone Labor Inc
PDF File 3402581.pdf 769 kB Shaun Ewing Sept 24, 1968 00:00
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US-3402581-A // Key operated lock // Schweizer Paul E. ; Jr. Richard K. Thompson, // Bell Telephone Labor Inc
PDF File 3402633.pdf 559 kB Shaun Ewing Sept 24, 1968 00:00
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US-3402633-A // Long path multiple beam interferometer // Herriott Donald R. // Bell Telephone Labor Inc
PDF File 3402979.pdf 158 kB Shaun Ewing Sept 24, 1968 00:00
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US-3402979-A // Light polarizer // Pao Yoh-Han ; Rentzepis Peter M. // Bell Telephone Labor Inc
PDF File 3402980.pdf 270 kB Shaun Ewing Sept 24, 1968 00:00
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US-3402980-A // Gas lens using two gases having unequal refractive indices // Hutson Andrew R. // Bell Telephone Labor Inc
PDF File 3403224.pdf 707 kB Shaun Ewing Sept 24, 1968 00:00
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US-3403224-A // Processing of communications signals to reduce effects of noise // Schroeder Manfred R. // Bell Telephone Labor Inc
PDF File 3403226.pdf 1.43 MB Shaun Ewing Sept 24, 1968 00:00
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US-3403226-A // Reduced bandwidth dual mode encoding of video signals // Wintringham William T. // Bell Telephone Labor Inc
PDF File 3403228.pdf 1.16 MB Shaun Ewing Sept 24, 1968 00:00
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US-3403228-A // Telephone party-line isolation and range extension // Zebe Charles W. // Bell Telephone Labor Inc
PDF File 3403229.pdf 624 kB Shaun Ewing Sept 24, 1968 00:00
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US-3403229-A // Error preventing supervisory circuit in a pbx having scanner switchover means // Piereth Richard J. // Bell Telephone Labor Inc
PDF File 3403230.pdf 1.92 MB Shaun Ewing Sept 24, 1968 00:00
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US-3403230-A // Equipment for serving dialing irregularities // Breed Rolland N. ; Budlong Albert H. ; Casterline Russell C. ; Lewis Bobby J. // Bell Telephone Labor Inc ; Western Electric Co
PDF File 3403260.pdf 597 kB Shaun Ewing Sept 24, 1968 00:00
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US-3403260-A // Plural channel optical memory using color to discriminate among channels // Geusic Joseph E. ; Skinner John G. // Bell Telephone Labor Inc
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