| US2470805A
              (en)
            
            * | 1941-09-12 | 1949-05-24 | Emi Ltd | Means for preventing or reducing the escape of high-frequency energy | 
        
          | GB612407A
              (en)
            
            * | 1942-06-29 | 1948-11-12 | Sperry Gyroscope Co Inc | Improvements in or relating to impedance transformers | 
        
          | US2438912A
              (en)
            
            * | 1942-06-29 | 1948-04-06 | Sperry Corp | Impedance transformer | 
        
          | US2557391A
              (en)
            
            * | 1942-10-07 | 1951-06-19 | Westinghouse Electric Corp | Coupling device for micro-wave energy | 
        
          | US2503256A
              (en)
            
            * | 1943-01-29 | 1950-04-11 | Sperry Corp | Ultra high frequency wavemeter | 
        
          | US2526678A
              (en)
            
            * | 1943-04-02 | 1950-10-24 | Sperry Corp | Ultra high frequency coupling | 
        
          | US2451876A
              (en)
            
            * | 1943-06-05 | 1948-10-19 | Winfield W Salisbury | Radio-frequency joint | 
        
          | US2464276A
              (en)
            
            * | 1943-08-03 | 1949-03-15 | Sperry Corp | Radiant energy directivity pattern scanner | 
        
          | US2542844A
              (en)
            
            * | 1943-08-14 | 1951-02-20 | Bell Telephone Labor Inc | Microwave directive antenna | 
        
          | US2463415A
              (en)
            
            * | 1943-08-26 | 1949-03-01 | Westinghouse Electric Corp | Shorting bar for concentric lines | 
        
          | US2604594A
              (en)
            
            * | 1943-10-02 | 1952-07-22 | Milton G White | Arrangement for varying wave lengths in coaxial lines | 
        
          | US2648000A
              (en)
            
            * | 1943-10-02 | 1953-08-04 | Us Navy | Control of wave length in wave guides | 
        
          | FR958806A
              (en:Method)
            
            * | 1944-02-09 | 1950-03-21 |  |  | 
        
          | US2560353A
              (en)
            
            * | 1945-03-16 | 1951-07-10 | Bell Telephone Labor Inc | Cavity resonator | 
        
          | US2520705A
              (en)
            
            * | 1945-03-21 | 1950-08-29 | Gen Motors Corp | Shielded ignition cable | 
        
          | US2570824A
              (en)
            
            * | 1945-07-04 | 1951-10-09 | Rca Corp | Wide band antenna | 
        
          | US2479209A
              (en)
            
            * | 1945-07-09 | 1949-08-16 | Chu Lan Jen | Antenna | 
        
          | US2699501A
              (en)
            
            * | 1945-08-02 | 1955-01-11 | Young Louise | Rapid scanning device | 
        
          | BE472157A
              (en:Method)
            
            * | 1945-08-13 |  |  |  | 
        
          | US2573746A
              (en)
            
            * | 1945-09-19 | 1951-11-06 | Honorary Advisory Council Sci | Directive antenna for microwaves | 
        
          | US2736868A
              (en)
            
            * | 1946-01-11 | 1956-02-28 | Jr Persa R Bell | Cavity tuner | 
        
          | BE471099A
              (en:Method)
            
            * | 1946-01-26 |  |  |  | 
        
          | US2666185A
              (en)
            
            * | 1946-02-18 | 1954-01-12 | George E Hulstede | Tuning plunger for a coaxial line type ultrahigh-frequency circuit | 
        
          | US2557686A
              (en)
            
            * | 1946-03-27 | 1951-06-19 | John A Radio | Wave guide with electrical end termination | 
        
          | US2593183A
              (en)
            
            * | 1946-03-30 | 1952-04-15 | Hazeltine Research Inc | Tunable wave signal device | 
        
          | US2500676A
              (en)
            
            * | 1947-01-14 | 1950-03-14 | Raytheon Mfg Co | Heating apparatus | 
        
          | US2572672A
              (en)
            
            * | 1947-05-06 | 1951-10-23 | Bell Telephone Labor Inc | Impedance transforming network | 
        
          | US2637782A
              (en)
            
            * | 1947-11-28 | 1953-05-05 | Motorola Inc | Resonant cavity filter | 
        
          | US2641707A
              (en)
            
            * | 1948-10-15 | 1953-06-09 | Eastern Ind Inc | Frequency responsive apparatus | 
        
          | US2649577A
              (en)
            
            * | 1949-04-13 | 1953-08-18 | John W Wolfe | Transmission line tuning device for electronic systems | 
        
          | US2630487A
              (en)
            
            * | 1949-07-22 | 1953-03-03 | Gen Electric | Apparatus for insulatingly terminating concentric conductor resonators |