| US3063628A
              (en)
            
            * |  | 1962-11-13 |  | hebel etal | 
        
          | US3186638A
              (en)
            
            * |  | 1965-06-01 |  | Voting machine | 
        
          | US2628572A
              (en)
            
            * | 1939-04-07 | 1953-02-17 | Mors Electricite | Magnetic control system for railway traffic | 
        
          | US2668875A
              (en)
            
            * | 1944-07-19 | 1954-02-09 | Shepherd Judson O'd | Data recording system | 
        
          | US2513112A
              (en)
            
            * | 1944-07-19 | 1950-06-27 | Shepherd Judson O'd | Data recording system employing record controlled apparatus | 
        
          | US2668718A
              (en)
            
            * | 1946-12-21 | 1954-02-09 | Int Electronics Co | Magnetic letterhead | 
        
          | US2560474A
              (en)
            
            * | 1947-06-18 | 1951-07-10 | Teletype Corp | Keyboard operated magnetic recorder | 
        
          | US2609907A
              (en)
            
            * | 1947-09-16 | 1952-09-09 | Brush Dev Co | Self-justifying printing device | 
        
          | US2714010A
              (en)
            
            * | 1948-07-07 | 1955-07-26 | Presto Recording Corp | Magnetic transducing unit | 
        
          | US2645494A
              (en)
            
            * | 1948-10-02 | 1953-07-14 | Mach Tool Works Oerlikon Admin | Magnetic sound recorder | 
        
          | US2610062A
              (en)
            
            * | 1949-09-07 | 1952-09-09 | Brush Dev Co | Indexing system | 
        
          | BE501957A
              (forum.php)
            
            * | 1950-03-18 |  |  |  | 
        
          | US2754496A
              (en)
            
            * | 1951-04-23 | 1956-07-10 | Robert C Embry | Identification coder and decoder | 
        
          | BE511945A
              (forum.php)
            
            * | 1951-06-07 |  |  |  | 
        
          | US3033367A
              (en)
            
            * | 1951-11-19 | 1962-05-08 | Donald G Gumpertz | Method and apparatus for identifying containers | 
        
          | US2989735A
              (en)
            
            * | 1951-11-19 | 1961-06-20 | Donald G Gumpertz | Method and apparatus for identifying containers | 
        
          | US2765895A
              (en)
            
            * | 1952-01-11 | 1956-10-09 | Graphic Arts Res Foundation In | Register for type composing apparatus | 
        
          | NL174651B
              (nl)
            
            * | 1952-07-26 |  | Rhone Poulenc Textile | Werkwijze voor het bereiden van antistatische samenstellingen op basis van polyesters. | 
        
          | US2751433A
              (en)
            
            * | 1952-07-28 | 1956-06-19 | Rca Corp | Character analyzing systems | 
        
          | US2935016A
              (en)
            
            * | 1952-09-05 | 1960-05-03 | Hughes Aircraft Co | High-speed printer | 
        
          | GB763418A
              (en)
            
            * | 1953-11-20 | 1956-12-12 | Remington Rand Inc | Improvements in magnetic data recording apparatus | 
        
          | DE1033682B
              (de)
            
            * | 1954-09-22 | 1958-07-10 | Taylorix Organisation | Einrichtung fuer automatische Zeilenwahl an Kontenkarteneinzugsvorrichtungen fuer Schreib-, Rechen- und Buchungs-maschinen | 
        
          | US2838993A
              (en)
            
            * | 1954-11-02 | 1958-06-17 | Exacta Buromaschinen G M B H K | Selective printer responsive to sound track on record card | 
        
          | US2956718A
              (en)
            
            * | 1955-04-15 | 1960-10-18 | Honeywell Regulator Co | Bidirectional tape transport apparatus | 
        
          | US2825558A
              (en)
            
            * | 1955-04-25 | 1958-03-04 | Honeywell Regulator Co | Electrostatic tape and methods of construction | 
        
          | US3000000A
              (en)
            
            * | 1955-05-06 | 1961-09-12 | Gen Electric | Automatic reading system | 
        
          | US2873666A
              (en)
            
            * | 1955-06-16 | 1959-02-17 | Sperry Rand Corp | High speed printer | 
        
          | US3015087A
              (en)
            
            * | 1955-07-26 | 1961-12-26 | Security Systems Inc | Security system | 
        
          | US2971809A
              (en)
            
            * | 1956-04-30 | 1961-02-14 | Taylorix Organisation Stiegler Hausser & Co | Magnetic marking means for recording media of business machines | 
        
          | US2998494A
              (en)
            
            * | 1957-02-25 | 1961-08-29 | Carl T Nations | Recording and reproducing device | 
        
          | US2943564A
              (en)
            
            * | 1957-12-24 | 1960-07-05 | Ibm | Printed data storage interpreter | 
        
          | DE1272824B
              (de)
            
            * | 1958-12-12 | 1968-07-11 | Cutler Hammer Inc | Zielgesteuerte Foerdereinrichtung mit magnetisierbaren Zielkennzeichenelementen | 
        
          | US3040323A
              (en)
            
            * | 1959-03-23 | 1962-06-19 | Brenner William | Magnetic coding means | 
        
          | US3083904A
              (en)
            
            * | 1960-09-09 | 1963-04-02 | Brenner William | Magnetic envelope means | 
        
          | US3207453A
              (en)
            
            * | 1962-04-27 | 1965-09-21 | Dasa Corp | Tape magazine for automatic telephone dialer | 
        
          | GB1054160A
              (forum.php)
            
            * | 1964-12-21 |  |  |  | 
        
          | US3474456A
              (en)
            
            * | 1966-02-28 | 1969-10-21 | Hewlett Packard Co | Electro-sensitive magnetic recording apparatus and method | 
        
          | US3788441A
              (en)
            
            * | 1971-04-26 | 1974-01-29 | Scm Corp | Editing typewriter with corresponding motion of recorder elements | 
        
          | US3756365A
              (en)
            
            * | 1971-10-08 | 1973-09-04 | Scm Corp | Magnetic recording and editing typewriter | 
        
          | US3924109A
              (en)
            
            * | 1974-07-22 | 1975-12-02 | Technology Marketing Inc | Automatic circuit card testing system | 
        
          | JP2545444B2
              (ja)
            
            * | 1988-06-17 | 1996-10-16 | 共同印刷株式会社 | 磁気記録媒体及びその製造方法 | 
        
          | US6235378B1
              (en)
            
            * | 1998-11-12 | 2001-05-22 | James T. Lowder | Composite magnetic sheet |