Matches 351 - 400 out of 411 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
3356794 Device for reducing noise in f. m. carrier recording  
3344238 Title is not available  
3323132 Portable magnetic digital recorder for use in utility meter reading  
3311903 Process for formation of deformation images in a thermoplastic magnetizable record medium  
3222680 Deflectable beam scanning units, and the like  
3218397 Tape recorder apparatus  
3171130 Magnetic recording  
3161730 Ultra-low frequency recording  
3160704 Video tape recording  
3145267 Sound recording and reproducing apparatus  
3137003 Microwave process and apparatus  
3084337 Variable gain control  
3084224 Magnetic recording  
3084011 Magnetic recording of measuring processes  
3068326 Magnetic recording and reproducing apparatus  
3063040 Transducing method and system  
3054108 Graphic recording system  
3049583 Magnetic recording means  
3042755 System for magnetic recording  
3041417 Readout on demand tape storage device  
3027078 Electronic digital differential analyzer  
2998489 Automatic telephone message service  
2975017 Optical frequency generator for magnetic timing and index tracks  
2968799 Magnetic transducer  
2968798 Magnetic transducing method and system  
2952503 Method and apparatus for magnetic recording and reproducing  
2948467 Function unit  
2939118 Storage device  
2936333 Oscilloscope recorder  
2933555 System for modulating a magnetic field for electrical reproduction  
2931571 Magnetic storage of multiple totals  
2917588 Apparatus for recording and playback  
2910911 Portable sound and motion picture camera  
2898401 Oscillograph recorder  
2885256 Recording system and method for displaced traces  
2879126 Method and apparatus for magnetic recording in a bore hole  
2864895 Recording apparatus  
2863712 Electric printer for magnetic codes  
2863003 Hybrid balancing network for a magnetic recorder  
2782626 Angle measuring and correcting means  
2770796 Registering device for receiving and sending connecting orders, particularly for conveying plants  
2751437 Signal translation systems  
2721990 Apparatus for locating information in a magnetic tape  
2559505 Art of making duplicate magnetic phonograph records  
2518117 Magnetic wire playing device  
2484568 Magnetic recorder method and means  
2435879 High-speed transmission communication apparatus  
2285079 Electromagnetic sound-reproducing device  
2251300 Telegraphone and like apparatus  
2080100 Method and means for storing and selecting records  
Matches 351 - 400 out of 411 < 1 2 3 4 5 6 7 8 9 >