|
NL182822B
(nl)
*
|
1952-11-15 |
|
Roskam Willem Gerrit |
Preparatief elektroforese-apparaat.
|
|
US2844739A
(en)
*
|
1953-07-01 |
1958-07-22 |
Rca Corp |
Sawtooth current wave generator
|
|
NL92537C
(US06312121-20011106-C00033.png)
*
|
1953-12-04 |
|
|
|
|
US2884545A
(en)
*
|
1954-03-17 |
1959-04-28 |
Gen Precision Lab Inc |
Transistor protection circuit
|
|
US2802071A
(en)
*
|
1954-03-31 |
1957-08-06 |
Rca Corp |
Stabilizing means for semi-conductor circuits
|
|
BE537130A
(US06312121-20011106-C00033.png)
*
|
1954-04-05 |
|
|
|
|
US2900530A
(en)
*
|
1954-04-16 |
1959-08-18 |
Vitro Corp Of America |
Transistor protection circuitry
|
|
US2907932A
(en)
*
|
1954-08-16 |
1959-10-06 |
Honeywell Regulator Co |
Phase discriminating apparatus
|
|
US2883313A
(en)
*
|
1954-08-16 |
1959-04-21 |
Rca Corp |
Semiconductor devices
|
|
US2879409A
(en)
*
|
1954-09-09 |
1959-03-24 |
Arthur W Holt |
Diode amplifier
|
|
US3028506A
(en)
*
|
1954-09-30 |
1962-04-03 |
Ibm |
Binary type pulse handling device
|
|
US2914665A
(en)
*
|
1954-11-15 |
1959-11-24 |
Rca Corp |
Semiconductor devices
|
|
BE556365A
(US06312121-20011106-C00033.png)
*
|
1954-12-03 |
|
|
|
|
US2848608A
(en)
*
|
1954-12-08 |
1958-08-19 |
Ibm |
Electronic ring circuit
|
|
US2914682A
(en)
*
|
1955-02-10 |
1959-11-24 |
Bendix Aviat Corp |
Demodulator
|
|
US2898476A
(en)
*
|
1955-07-05 |
1959-08-04 |
Honeywell Regulator Co |
Transistor control apparatus
|
|
US2938194A
(en)
*
|
1955-07-25 |
1960-05-24 |
Bell Telephone Labor Inc |
Ferroelectric storage circuits
|
|
US2905836A
(en)
*
|
1955-07-27 |
1959-09-22 |
Rca Corp |
Semiconductor devices and systems
|
|
US2816238A
(en)
*
|
1955-08-18 |
1957-12-10 |
Gen Dynamics Corp |
Electronic switches
|
|
US2823322A
(en)
*
|
1955-08-23 |
1958-02-11 |
Gen Dynamics Corp |
Electronic switch
|
|
US2774888A
(en)
*
|
1955-08-23 |
1956-12-18 |
Gen Dynamics Corp |
Electronic switch
|
|
NL243662A
(US06312121-20011106-C00033.png)
*
|
1955-08-23 |
|
|
|
|
US2904705A
(en)
*
|
1955-08-29 |
1959-09-15 |
Gen Dynamics Corp |
Electronic switch
|
|
US2810081A
(en)
*
|
1955-09-27 |
1957-10-15 |
Gen Dynamics Corp |
Electronic switch for selectively blocking or permitting the simultaneous transmission of signals in two channels
|
|
US2972136A
(en)
*
|
1955-10-10 |
1961-02-14 |
Gieseler Luther Paul |
Data handling system and magnetic switching network therefor
|
|
BE553053A
(US06312121-20011106-C00033.png)
*
|
1955-12-01 |
|
|
|
|
GB844850A
(en)
*
|
1955-12-19 |
1960-08-17 |
Nat Res Dev |
Improvements in or relating to electronic storage and switching circuits
|
|
US2889460A
(en)
*
|
1956-01-26 |
1959-06-02 |
Honeywell Regulator Co |
Electrical apparatus
|
|
US2889401A
(en)
*
|
1956-09-12 |
1959-06-02 |
Mid West Coil And Transformer |
Intercommunication unit
|
|
BE630765A
(US06312121-20011106-C00033.png)
*
|
1956-11-08 |
|
|
|
|
US3020351A
(en)
*
|
1957-03-20 |
1962-02-06 |
Gen Dynamics Corp |
Directional coupling network
|
|
US2853603A
(en)
*
|
1957-03-20 |
1958-09-23 |
Rca Corp |
Dual channel transistor amplifier
|
|
US2912599A
(en)
*
|
1957-03-29 |
1959-11-10 |
Abraham George |
Parametric switching circuit amplifier
|
|
US2980769A
(en)
*
|
1957-05-06 |
1961-04-18 |
Westinghouse Electric Corp |
Bidirectional multiplex transistor communication apparatus
|
|
US3002144A
(en)
*
|
1957-08-21 |
1961-09-26 |
Boeing Co |
Controllable impedances
|
|
US3050582A
(en)
*
|
1957-10-01 |
1962-08-21 |
Jr John L Faherty |
Anti-feedback system
|
|
BE571806A
(US06312121-20011106-C00033.png)
*
|
1958-01-06 |
|
|
|
|
US2988688A
(en)
*
|
1958-02-24 |
1961-06-13 |
Boeing Co |
Control circuits
|
|
US3052760A
(en)
*
|
1958-02-25 |
1962-09-04 |
Ericsson Telefon Ab L M |
Switch arrangement in a multi-channel-pulse-communication-system
|
|
DE1090276B
(de)
*
|
1958-04-24 |
1960-10-06 |
Standard Elektrik Lorenz Ag |
Als Modulator verwendeter Zweirichtungsverstaerker
|
|
US3060267A
(en)
*
|
1958-10-23 |
1962-10-23 |
Bell Telephone Labor Inc |
Switching circuit
|
|
US3086083A
(en)
*
|
1958-10-23 |
1963-04-16 |
Bell Telephone Labor Inc |
Switching circuit
|
|
US3071647A
(en)
*
|
1959-01-07 |
1963-01-01 |
Sylvania Electric Prod |
Intercommunication system
|
|
US3113183A
(en)
*
|
1959-04-02 |
1963-12-03 |
Bell Telephone Labor Inc |
Switching circuit
|
|
DE1108748B
(de)
*
|
1959-08-04 |
1961-06-15 |
Standard Elektrik Lorenz Ag |
Schaltungsanordnung fuer mit einem Transistor ausgeruestete Teilnehmerstationen
|
|
US3175050A
(en)
*
|
1960-03-21 |
1965-03-23 |
Nat Company Inc |
Bi-directional signal circuit
|
|
US3147345A
(en)
*
|
1961-04-26 |
1964-09-01 |
Bell Telephone Labor Inc |
Gain selective telephone set
|
|
US3172960A
(en)
*
|
1961-12-12 |
1965-03-09 |
|
Symmetrical transistor amplifier |
|
US3889058A
(en)
*
|
1969-01-15 |
1975-06-10 |
Ard Anstalt |
Telephone systems with reduced acoustic feedback
|
|
US4278843A
(en)
*
|
1974-04-01 |
1981-07-14 |
Anaconda-Ericsson Inc. |
Two-way amplifier arrangement
|
|
DE69433503T2
(de)
*
|
1993-11-16 |
2004-06-24 |
Commonwealth Scientific And Industrial Research Organisation |
Bidirektionaler verstaerker
|
