Name Size Creator Creation Date Labels Comment  
PDF File 3307972.pdf 155 kB Shaun Ewing Mar 07, 1967 00:00
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US-3307972-A // Electroless copper deposition // Ehrhardt Robert A. // Bell Telephone Labor Inc
PDF File 3307778.pdf 306 kB Shaun Ewing Mar 07, 1967 00:00
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US-3307778-A // Coin telephone cash box booster spring // Stokes Rembert R. // Bell Telephone Labor Inc
PDF File 3307762.pdf 402 kB Shaun Ewing Mar 07, 1967 00:00
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US-3307762-A // Single line printout reader for computer sheets // Boughrum Richard L. ; Wills Robert F. // Bell Telephone Labor Inc
PDF File 3307470.pdf 303 kB Shaun Ewing Mar 07, 1967 00:00
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US-3307470-A // Exhaust conduit // Kenny Robert W. ; Torpey Paul J. // Bell Telephone Labor Inc
PDF File 3307239.pdf 263 kB Shaun Ewing Mar 07, 1967 00:00
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US-3307239-A // Method of making integrated semiconductor devices // Lepselter Martin P. ; Naymik Daniel A. // Bell Telephone Labor Inc
PDF File 3307160.pdf 771 kB Shaun Ewing Feb 28, 1967 00:00
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US-3307160-A // Magnetic memory matrix // Young Lawrence H. // Bell Telephone Labor Inc
PDF File 3307159.pdf 611 kB Shaun Ewing Feb 28, 1967 00:00
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US-3307159-A // Magnetic shift register circuit // Walters Edward M. // Bell Telephone Labor Inc
PDF File 3307149.pdf 1.56 MB Shaun Ewing Feb 28, 1967 00:00
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US-3307149-A // Control logic circuit for subscriber data set carrier signal threshold monitor // Doktor Theodore L. ; Parker George ; Zydney Herbert M. // Bell Telephone Labor Inc
PDF File 3307120.pdf 416 kB Shaun Ewing Feb 28, 1967 00:00
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US-3307120-A // Ultrasonic wave device // Denton Richard T. ; Spencer Edward G. // Bell Telephone Labor Inc
PDF File 3306984.pdf 408 kB Shaun Ewing Feb 28, 1967 00:00
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US-3306984-A // Elimination of talk-off in in-band signaling systems // Leonard Donald J. // Bell Telephone Labor Inc
PDF File 3306983.pdf 635 kB Shaun Ewing Feb 28, 1967 00:00
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US-3306983-A // Call transfer system // Goodwin James M. ; Hayes Richard L. ; Loofbourrow John W. // Bell Telephone Labor Inc
PDF File 3306830.pdf 345 kB Shaun Ewing Feb 28, 1967 00:00
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US-3306830-A // Printed circuit boards and their fabrication // Bittrich Gustav ; Ehrhardt Robert A. // Bell Telephone Labor Inc
PDF File 3305798.pdf 719 kB Shaun Ewing Feb 21, 1967 00:00
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US-3305798-A // Phase equalizer concatenated with transversal equalizer wherein both are automatically controlled to minimize pulse distortion and minimize burden of transversal filter // Rappeport Michael A. // Bell Telephone Labor Inc
PDF File 3305646.pdf 624 kB Shaun Ewing Feb 21, 1967 00:00
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US-3305646-A // Echo suppressor with improved break-in circuitry // Brady Paul T. ; Helder George K. // Bell Telephone Labor Inc
PDF File 3305642.pdf 878 kB Shaun Ewing Feb 21, 1967 00:00
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US-3305642-A // Intercity tie line circuit with multiple route seizure // Veigl John W. // Bell Telephone Labor Inc
PDF File 3305301.pdf 190 kB Shaun Ewing Feb 21, 1967 00:00
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US-3305301-A // Process for the growth of ordered lithium ferrite // Remeika Joseph P. // Bell Telephone Labor Inc
PDF File 3304520.pdf 492 kB Shaun Ewing Feb 14, 1967 00:00
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US-3304520-A // Variable elastic wave deflection // Auld Bert A. // Bell Telephone Labor Inc
PDF File 3304492.pdf 332 kB Shaun Ewing Feb 14, 1967 00:00
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US-3304492-A // Line sharpening in spectroscopy by the inclusion of higher order derivatives in the absorption spectrum // Glarum Sivert H. // Bell Telephone Labor Inc
PDF File 3304489.pdf 561 kB Shaun Ewing Feb 14, 1967 00:00
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US-3304489-A // High frequency switching regulator // Brolin Stephen J. ; Meszaros George W. // Bell Telephone Labor Inc
PDF File 3304440.pdf 456 kB Shaun Ewing Feb 14, 1967 00:00
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US-3304440-A // Pulse shaping circuit // Jr. William M. Sillers, // Bell Telephone Labor Inc
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