| Patents for G11B 25 - Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing (7,037) |
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| 02/19/1980 | CA1072206A1 Storage device utilizing flexible magnetic disks |
| 02/12/1980 | CA1071767A1 Video disc player for playing records of different thickness |
| 01/22/1980 | US4185308 Enclosed-type magnetic disc recording and/or reproducing apparatus |
| 01/22/1980 | US4185307 Tape cassette |
| 01/22/1980 | CA1070423A1 Helical scan magnetic recording device having a folded mounting plate |
| 01/15/1980 | US4183477 Cassette adapter |
| 01/15/1980 | US4183254 Drive reducer for tape recorder |
| 01/09/1980 | EP0006631A1 Disk storage apparatus |
| 01/08/1980 | US4183069 Support apparatus for a flexible disc and disc reader using this support apparatus |
| 01/01/1980 | CA1069213A Mold for use in making a video disc |
| 01/01/1980 | CA1069056A Disc record player with improved anti-skating device |
| 12/18/1979 | US4179715 Electric circuit for accessory for host tape recorder |
| 12/18/1979 | CA1068320A1 Multi-actuator system using single magnetic circuit |
| 10/23/1979 | CA1065040A1 Molded chassis on which parts of a tape recorder or the like are mounted |
| 10/17/1979 | EP0004738A1 Video disc player |
| 10/02/1979 | US4169970 Memorial audio reproduction system |
| 09/25/1979 | US4169277 Reel-to-reel adapter for tape cartridge player |
| 09/11/1979 | US4167269 Flexible record disk signal storage apparatus |
| 09/11/1979 | US4167256 Tape recorder/reproducer for selectably operating in reel-to-reel and cassette modes |
| 09/04/1979 | US4167026 Information reproducing and recording apparatus for recording on tape from a phonograph record |
| 09/04/1979 | CA1061901A1 Apparatus for recording and/or playing back signals on and/or from a record carrier contained in a cassette |
| 08/21/1979 | CA1060986A1 Video recording and/or reproducing apparatus |
| 07/31/1979 | CA1059621A1 Machine for processing merchandising tickets in both roll and individual form |
| 07/03/1979 | US4159810 Cassette re-winding device |
| 06/26/1979 | CA1057394A1 Adapter for use in transcribers |
| 06/19/1979 | US4158871 Kit for servicing tape cartridge playback unit |
| 06/19/1979 | US4158450 Mounting of parts on a chassis or base plate |
| 06/05/1979 | CA1056055A1 Storage system having a universal disk drive and a family of data modules |
| 06/05/1979 | CA1055854A2 Hand-held playback device, system and method |
| 05/22/1979 | US4156260 Cartridge-loading tape recorder |
| 05/22/1979 | US4156259 Tape recorder in which a cassette tape and a card are co-used |
| 05/01/1979 | US4152728 Releasable carriage drive unit for an optical disc player |
| 05/01/1979 | CA1053795A2 Disc interface location |
| 04/24/1979 | US4151564 Modular, semiautomatic credit card reader/writer apparatus |
| 03/27/1979 | CA1051353A1 Spindle depress/brake mechanism |
| 02/13/1979 | US4139875 Cassette and card recording and/or reproducing apparatus |
| 02/06/1979 | US4138700 Container for using a miniaturized cartridge in an eight-track player |
| 02/06/1979 | US4138696 Device for automatically recording, reproducing and translating, a magnetic transducer |
| 02/06/1979 | US4138695 Cassette central dictation system |
| 01/23/1979 | US4136366 Cassette tape recorder and method for producing the same |
| 01/23/1979 | US4136293 Multi-actuator system using single magnetic circuit |
| 12/19/1978 | US4130849 Indexed memory coordinator |
| 12/12/1978 | US4129890 Magnetic recording and reproducing apparatus |
| 12/12/1978 | US4129688 Battery compartment in portable apparatus |
| 11/21/1978 | US4126885 Card recording and/or reproducing apparatus |
| 10/31/1978 | US4123784 Selectable fraction of revolution tape recorder |
| 10/31/1978 | US4123016 Control for mini tape recorder |
| 10/17/1978 | CA1040766A1 Tuner with digitally coded indicia |
| 10/10/1978 | CA1040308A1 Signal recording and/or reproducing apparatus with phase shifting to compensate for amplitude levels at overlap points |
| 10/03/1978 | US4118746 High performance floppy pack and associated system |
| 09/19/1978 | CA1038959A1 Video recording and/or reproducing apparatus, and record assembly for use therein |
| 09/12/1978 | US4113994 Dictation recording and transcribing system utilizing selectable dual message record-playback apparatus |
| 09/12/1978 | CA1038492A1 Stacked flexible record disk storage apparatus having enhanced disk separation using a primary bending mode in a stack of disks |
| 09/12/1978 | CA1038491A1 Stacked flexible record disk storage apparatus having enhanced disk separation with transducer mounted in disk separator |
| 09/05/1978 | US4112470 System for repeatedly reproducing a recorded material of a limited duration |
| 08/15/1978 | USRE29733 Telephone answering apparatus |
| 08/15/1978 | US4107749 Cassette record player-recorder |
| 08/15/1978 | US4107489 Switch mechanism for simple phonograph |
| 08/15/1978 | US4106686 Tape transport |
| 07/25/1978 | US4102569 Sound slide |
| 07/11/1978 | US4100581 Door actuated message device |
| 05/23/1978 | US4091454 Self-centering disk having an eccentric elliptical-shaped center locating hole |
| 05/23/1978 | US4091427 Electric control system for magnetic sheet recording and reproducing apparatus for audiovisual instruction |
| 05/16/1978 | US4089489 Braking apparatus for a web transport system |
| 04/11/1978 | US4084198 Card scanning video system |
| 03/28/1978 | US4081850 Portable tape player and tape container |
| 03/21/1978 | US4080638 Housing and tape playback apparatus with improved tape drive system |
| 02/21/1978 | US4075436 Cassette central dictation system |
| 02/21/1978 | US4074876 Long-play video tape cassette |
| 02/07/1978 | US4072995 Tape viewing system for micro-cassette tape recorder |
| 02/07/1978 | US4072992 Continuous loop tape cartridges |
| 01/31/1978 | US4071863 Stationary magnetic tape transducing system with means for controlling the air bearing support |
| 12/27/1977 | US4065801 Kit for cleaning tape cartridge playback unit |
| 11/29/1977 | US4060838 Centering pin for cassette apparatus |
| 11/29/1977 | US4060248 Playing apparatus, in particular a video player for playing a record which is made of a transparent material and provided with a central hole |
| 11/08/1977 | US4057256 Apparatus for detachably mounting a record sheet in place in a sheet type recorder/player |
| 10/18/1977 | US4054931 Gas filtering arrangement for magnetic disk information storage apparatus |
| 09/20/1977 | US4050090 Helical scan magnetic recording device having a folded mounting plate |
| 08/23/1977 | US4044393 Hand guided tape player |
| 08/02/1977 | US4040102 Magnetic tape device |
| 07/26/1977 | US4038694 Player for tape cartridges and cassettes |
| 07/05/1977 | US4034411 Magnetic disk information storage apparatus |
| 06/28/1977 | US4032983 Adapter for use in transcribers |
| 06/28/1977 | US4031634 Teaching device |
| 06/21/1977 | US4031555 Reel-to-reel tape to tape cartridge adapter |
| 06/14/1977 | US4030135 Dual cassette tape recorder |
| 06/14/1977 | US4029269 Tape drive with floating-plate-mounted drive spindles |
| 06/07/1977 | US4027405 Record-reproduce device for flash cards |
| 05/17/1977 | US4024581 Or reading, magnetic discs |
| 05/17/1977 | US4024354 Cassette central dictation system |
| 05/10/1977 | US4023205 Audiocard return mechanism |
| 03/29/1977 | US4014275 Sewing machine re-programmable memory |
| 03/22/1977 | USRE29159 Vertical record card adapter for record tape machine |
| 03/22/1977 | US4014042 Tape recorder and magnetic tape cassette |
| 03/15/1977 | US4012790 Magnetic transducing apparatus for using both endless loop cartridges and reel-to-reel cassettes |
| 03/15/1977 | US4012789 101/2 Inch tape reel adaptor |
| 02/22/1977 | US4009492 Or reproducing medium |
| 02/22/1977 | US4008841 Two piece sheet metal capstan housing assembly |
| 02/15/1977 | US4008490 Multiple magazine transducing apparatus |
| 02/15/1977 | US4008489 Portable video tape recorder |