|
US2698386A
(en)
*
|
1950-11-21 |
1954-12-28 |
Rca Corp |
Push-pull sine wave oscillator
|
|
US2680160A
(en)
*
|
1951-09-15 |
1954-06-01 |
Bell Telephone Labor Inc |
Bias circuit for transistor amplifiers
|
|
BE523061A
(US06291589-20010918-C00001.png)
*
|
1952-09-27 |
|
|
|
|
US2764642A
(en)
*
|
1952-10-31 |
1956-09-25 |
Bell Telephone Labor Inc |
Semiconductor signal translating devices
|
|
BE526444A
(US06291589-20010918-C00001.png)
*
|
1953-02-13 |
|
|
|
|
US2808469A
(en)
*
|
1953-04-20 |
1957-10-01 |
Motorola Inc |
Transistor circuit
|
|
BE527474A
(US06291589-20010918-C00001.png)
*
|
1953-04-29 |
1900-01-01 |
|
|
|
IT547049A
(US06291589-20010918-C00001.png)
*
|
1953-06-19 |
|
|
|
|
US2890352A
(en)
*
|
1953-08-24 |
1959-06-09 |
Rca Corp |
Amplitude discriminatory system
|
|
US2864002A
(en)
*
|
1953-09-16 |
1958-12-09 |
Bell Telephone Labor Inc |
Transistor detector
|
|
FR1090564A
(fr)
*
|
1953-09-17 |
1955-03-31 |
Hatot Leon Ets |
Perfectionnements apportés aux mécanismes horaires et aux appareils analogues
|
|
US2809239A
(en)
*
|
1953-09-18 |
1957-10-08 |
Sylvania Electric Prod |
Transistor circuits
|
|
US2759052A
(en)
*
|
1953-09-21 |
1956-08-14 |
Motorola Inc |
Amplifier semi-conductor volume compression system
|
|
US2924778A
(en)
*
|
1953-09-30 |
1960-02-09 |
Rca Corp |
Semi-conductor signal conveying circuits
|
|
US2894150A
(en)
*
|
1953-10-07 |
1959-07-07 |
Avco Mfg Corp |
Transistor signal translating circuit
|
|
US2751497A
(en)
*
|
1953-12-15 |
1956-06-19 |
Bell Telephone Labor Inc |
Superregenerative transistor broadcast receiver
|
|
US2813934A
(en)
*
|
1953-12-28 |
1957-11-19 |
Barber Colman Co |
Transistor amplifier
|
|
US2858423A
(en)
*
|
1953-12-29 |
1958-10-28 |
Gen Electric |
Feedback circuit for semiconductor amplifiers
|
|
GB771625A
(en)
*
|
1953-12-31 |
1957-04-03 |
Ibm |
Electric charge storage apparatus
|
|
US2751549A
(en)
*
|
1954-01-04 |
1956-06-19 |
Bell Telephone Labor Inc |
Current supply apparatus
|
|
US2961587A
(en)
*
|
1954-01-16 |
1960-11-22 |
Omega Brandt & Freres Sa Louis |
Timepiece
|
|
US2819352A
(en)
*
|
1954-01-29 |
1958-01-07 |
Gen Precision Lab Inc |
Transistor magnetic amplifier circuit
|
|
US2889467A
(en)
*
|
1954-05-03 |
1959-06-02 |
Rca Corp |
Semiconductor integrator
|
|
US2890293A
(en)
*
|
1954-05-11 |
1959-06-09 |
Philips Corp |
Transistor amplifier having simultaneous gain and selectivity control
|
|
US2807758A
(en)
*
|
1954-07-30 |
1957-09-24 |
Honeywell Regulator Co |
Transistor flame detector
|
|
US2992399A
(en)
*
|
1954-09-17 |
1961-07-11 |
Bell Telephone Labor Inc |
Oscillator amplitude control
|
|
US2887540A
(en)
*
|
1954-09-20 |
1959-05-19 |
Rca Corp |
Temperature-compensated transistor biasing circuits
|
|
US2871378A
(en)
*
|
1954-09-24 |
1959-01-27 |
Rca Corp |
Stepwave generator
|
|
BE541780A
(US06291589-20010918-C00001.png)
*
|
1954-10-06 |
|
|
|
|
US2821639A
(en)
*
|
1954-10-28 |
1958-01-28 |
Westinghouse Electric Corp |
Transistor switching circuits
|
|
DE1032788B
(de)
*
|
1954-11-25 |
1958-06-26 |
Philips Nv |
Transistorverstaerker mit Arbeitspunktstabilisierung
|
|
US2863069A
(en)
*
|
1954-11-26 |
1958-12-02 |
Rca Corp |
Transistor sweep circuit
|
|
US2830199A
(en)
*
|
1954-11-30 |
1958-04-08 |
Raytheon Mfg Co |
Pulse generating circuits
|
|
BE544125A
(US06291589-20010918-C00001.png)
*
|
1955-01-03 |
|
|
|
|
US2830242A
(en)
*
|
1955-01-06 |
1958-04-08 |
Foxboro Co |
Servo system measuring apparatus
|
|
DE1006895B
(de)
*
|
1955-05-16 |
1957-04-25 |
Philips Nv |
Sprungschaltung mit Transistoren
|
|
US2841746A
(en)
*
|
1955-05-19 |
1958-07-01 |
Rca Corp |
Protective circuit
|
|
US3215917A
(en)
*
|
1955-06-02 |
1965-11-02 |
Buck Instr Co |
Electrically driven timing device
|
|
BE549063A
(US06291589-20010918-C00001.png)
*
|
1955-06-28 |
|
|
|
|
US2989597A
(en)
*
|
1955-06-30 |
1961-06-20 |
John A Victoreen |
High fidelity sound translating apparatus
|
|
US2931955A
(en)
*
|
1955-08-24 |
1960-04-05 |
Lewis Eng Co |
Instrument relay
|
|
US2892045A
(en)
*
|
1956-02-01 |
1959-06-23 |
Rca Corp |
Class b transistor amplifier
|
|
US2851542A
(en)
*
|
1956-05-17 |
1958-09-09 |
Rca Corp |
Transistor signal amplifier circuits
|
|
US2912573A
(en)
*
|
1956-10-17 |
1959-11-10 |
Motorola Inc |
Receiver having frequency-and-amplitude-modulation-detecting limiter stage
|
|
US3108771A
(en)
*
|
1957-01-25 |
1963-10-29 |
Servo Corp Of America |
Shunting aid for railway signalling circuits
|
|
US2957116A
(en)
*
|
1957-06-14 |
1960-10-18 |
Hurd Lock & Mfg Company |
Mechano-electric clocks
|
|
US2976402A
(en)
*
|
1957-06-18 |
1961-03-21 |
Gen Railway Signal Co |
Control cirucit for a field start relay in a code type communication system
|
|
DE1100090B
(de)
*
|
1959-09-29 |
1961-02-23 |
Siemens Ag |
Verzerrer mit Transistoren in Gegentaktschaltung
|
|
US3051815A
(en)
*
|
1959-09-30 |
1962-08-28 |
North American Aviation Inc |
Phase controlled servo system
|
|
US3156827A
(en)
*
|
1961-07-06 |
1964-11-10 |
Emmett E Porteous |
Photosensitive transistor circuit for slave flash unit
|
|
US3174058A
(en)
*
|
1961-10-02 |
1965-03-16 |
Ibm |
Bilateral current driver
|
|
US3168656A
(en)
*
|
1962-06-18 |
1965-02-02 |
Tektronix Inc |
Transmission line circuit having termination impedance which includes emitter junction of transistor
|
|
US3688129A
(en)
*
|
1969-08-26 |
1972-08-29 |
Sony Corp |
Signal control circuit
|
|
GB1281984A
(en)
*
|
1970-03-07 |
1972-07-19 |
Marconi Instruments Ltd |
Improvements in or relating to peak detection circuits
|
