Stepping motor work and feed drive for magnetic tape recorder
GB1110512A
A motor-driven transparency projection apparatus
US3372502A
System for moving the transparency magazine in transparency projectors
GB1109125A
Cassette for storing sound support tape
GB1109126A
Apparatus for optically projecting slides and recording and play-back of sound tapes
US3357303A
Combined apparatus for proejcting slides and recording and playing sound tapes
US3347482A
Tape recorder control device
GB1109124A
Device for controlling the unwinding and rewinding of a sound-recording tape
FR1438600A
Device intended to ensure, with a view to recording or playing, the unwinding and rewinding of a soundtrack of determined length
DE1222701B
Device for pulling out and re-inserting a tape from or into a cassette during sound recording or playback
GB1067587A
An improved frame for supporting transparencies whilst being projected
FR1394423A
Support frame for slides and their accompanying sound
GB1062432A
An automatic return device for the pick-up arm of a record player
DE1185833B
Device for the automatic return of a turntable arm to the rest position at the end of a playback
DE1276358B
Cassette for storing an audio tape
US3349192A
Tape senser for dictating machines
US3221585A
Tape severing means for dictating machines
US3254245A
Stepping motor
DE1174530B
Tape limit switch for sound recording devices
DE1185838B
Drive device for the tape-shaped recording medium of sound recording and playback devices with transverse to the direction of advance of the recording medium recording and reproduction in line letters