| 
            
              NL65322C
              (en, 2012)
            
            *
            
           | 
          1941-04-11 | 
           | 
           | 
           | 
        
        
          | 
            
              US2463267A
              (en)
            
            *
            
           | 
          1941-04-26 | 
          1949-03-01 | 
          Gen Electric | 
          High-frequency apparatus 
        | 
        
        
          | 
            
              NL79204C
              (en, 2012)
            
            *
            
           | 
          1941-08-08 | 
           | 
           | 
           | 
        
        
          | 
            
              US2439387A
              (en)
            
            *
            
           | 
          1941-11-28 | 
          1948-04-13 | 
          Sperry Corp | 
          Electronic tuning control 
        | 
        
        
          | 
            
              US2500944A
              (en)
            
            *
            
           | 
          1942-07-21 | 
          1950-03-21 | 
          Sperry Corp | 
          High-frequency tube structure 
        | 
        
        
          | 
            
              US2475652A
              (en)
            
            *
            
           | 
          1942-08-03 | 
          1949-07-12 | 
          Sperry Corp | 
          High-frequency tube structure 
        | 
        
        
          | 
            
              US2574012A
              (en)
            
            *
            
           | 
          1942-09-15 | 
          1951-11-06 | 
          Csf | 
          Electron discharge tube and circuit arrangement therefor 
        | 
        
        
          | 
            
              US2435601A
              (en)
            
            *
            
           | 
          1942-12-31 | 
          1948-02-10 | 
          Gen Electric | 
          Phase modulation system 
        | 
        
        
          | 
            
              US2449569A
              (en)
            
            *
            
           | 
          1943-01-18 | 
          1948-09-21 | 
          Sperry Corp | 
          Electron beam apparatus 
        | 
        
        
          | 
            
              US2487800A
              (en)
            
            *
            
           | 
          1943-01-22 | 
          1949-11-15 | 
          Sperry Corp | 
          Frequency multiplier and stabilization cavity resonator apparatus 
        | 
        
        
          | 
            
              US2460498A
              (en)
            
            *
            
           | 
          1943-03-15 | 
          1949-02-01 | 
          Sperry Corp | 
          Modulation control apparatus 
        | 
        
        
          | 
            
              US2445618A
              (en)
            
            *
            
           | 
          1943-04-01 | 
          1948-07-20 | 
          Westinghouse Electric Corp | 
          Modulation system 
        | 
        
        
          | 
            
              US2428931A
              (en)
            
            *
            
           | 
          1943-05-26 | 
          1947-10-14 | 
          Rca Corp | 
          Reactance tube timing modulator 
        | 
        
        
          | 
            
              US2486398A
              (en)
            
            *
            
           | 
          1943-05-29 | 
          1949-11-01 | 
          Sperry Corp | 
          Velocity modulation device and method 
        | 
        
        
          | 
            
              US2466064A
              (en)
            
            *
            
           | 
          1943-06-28 | 
          1949-04-05 | 
          Sperry Corp | 
          Velocity modulation apparatus 
        | 
        
        
          | 
            
              US2476885A
              (en)
            
            *
            
           | 
          1943-07-28 | 
          1949-07-19 | 
          Westinghouse Electric Corp | 
          Mixer for microwave receivers 
        | 
        
        
          | 
            
              US2470802A
              (en)
            
            *
            
           | 
          1943-08-10 | 
          1949-05-24 | 
          Rca Corp | 
          Microwave device 
        | 
        
        
          | 
            
              US2558758A
              (en)
            
            *
            
           | 
          1944-01-22 | 
          1951-07-03 | 
          Sperry Corp | 
          Radio velocity indicator 
        | 
        
        
          | 
            
              US2458167A
              (en)
            
            *
            
           | 
          1944-04-27 | 
          1949-01-04 | 
          Machlett Lab Inc | 
          Electrical discharge device having cavity resonators 
        | 
        
        
          | 
            
              US2438768A
              (en)
            
            *
            
           | 
          1944-04-28 | 
          1948-03-30 | 
          Philco Corp | 
          Apparatus for varying the frequency of resonant cavities 
        | 
        
        
          | 
            
              US2423968A
              (en)
            
            *
            
           | 
          1944-08-26 | 
          1947-07-15 | 
          Farnsworth Television & Radio | 
          High-frequency apparatus 
        | 
        
        
          | 
            
              US2695373A
              (en)
            
            *
            
           | 
          1944-11-16 | 
          1954-11-23 | 
          Rca Corp | 
          Cavity resonator high-frequency apparatus 
        | 
        
        
          | 
            
              US2421725A
              (en)
            
            *
            
           | 
          1944-11-23 | 
          1947-06-03 | 
          Philco Corp | 
          Variable frequency cavity resonator oscillator 
        | 
        
        
          | 
            
              US2464115A
              (en)
            
            *
            
           | 
          1944-12-08 | 
          1949-03-08 | 
          Emi Ltd | 
          Apparatus for amplitude modulating high-frequency oscillations 
        | 
        
        
          | 
            
              US2472769A
              (en)
            
            *
            
           | 
          1945-03-07 | 
          1949-06-07 | 
          Rca Corp | 
          Signaling system 
        | 
        
        
          | 
            
              GB628806A
              (en)
            
            *
            
           | 
          1945-11-14 | 
          1949-09-06 | 
          Gen Electric Co Ltd | 
          Improvements in apparatus for accelerating charged particles, especially electrons, to very high velocity 
      | 
        
        
          | 
            
              BE472927A
              (en, 2012)
            
            *
            
           | 
          1946-03-27 | 
           | 
           | 
           | 
        
        
          | 
            
              US2785335A
              (en)
            
            *
            
           | 
          1946-05-15 | 
          1957-03-12 | 
          Robert H Dicke | 
          Multi-cavity klystron 
        | 
        
        
          | 
            
              US2553566A
              (en)
            
            *
            
           | 
          1946-10-07 | 
          1951-05-22 | 
          Farnsworth Res Corp | 
          Phase modulated wave generator 
        | 
        
        
          | 
            
              US2605444A
              (en)
            
            *
            
           | 
          1948-08-17 | 
          1952-07-29 | 
          Westinghouse Electric Corp | 
          Multichannel frequency selector and amplifier 
        | 
        
        
          | 
            
              US2768322A
              (en)
            
            *
            
           | 
          1951-06-08 | 
          1956-10-23 | 
          Bell Telephone Labor Inc | 
          Interdigital filter circuit 
        | 
        
        
          | 
            
              US2827589A
              (en)
            
            *
            
           | 
          1952-05-17 | 
          1958-03-18 | 
          Bell Telephone Labor Inc | 
          Electron discharge device 
        | 
        
        
          | 
            
              US2892056A
              (en)
            
            *
            
           | 
          1953-08-03 | 
          1959-06-23 | 
          Rca Corp | 
          Cathode ray tube systems 
        | 
        
        
          | 
            
              FR1105501A
              (fr)
            
            *
            
           | 
          1954-05-18 | 
          1955-12-05 | 
          Csf | 
          Klystron reflex générateur d'harmoniques en ondes millimétriques d'une fréquencefondamentale en onde centimétrique 
        |