CH268583A
(en )
1950-05-31
Magnetic tape recording and playback apparatus.
FR1051015A
(en )
1954-01-12
Improvements to magnetic recording and reproducing devices
NL171847B
(en )
SOUND RECORDING AND PLAYBACK DEVICE.
AT195138B
(en )
1958-01-25
Sound recording and reproducing device
DK82048C
(en )
1957-02-11
Device by an electromagnetic sound recording and reproducing apparatus.
AT191630B
(en )
1957-09-10
Sound recording and playback device
DK77396C
(en )
1954-04-12
Device for magnetic sound recording and reproducing apparatus.
CH289208A
(en )
1953-02-28
Magnetic sound recording and reproducing device.
CH292852A
(en )
1953-08-31
Device for recording and reproducing sounds.
CH310547A
(en )
1955-10-31
Magnetic recorder.
DK86119C
(en )
1958-08-25
Magnetic sound recording and reproducing apparatus.
AT194154B
(en )
1957-12-27
Magnetic sound recording and reproducing device
CH319629A
(en )
1957-02-28
Sound recording and reproducing device
AT193628B
(en )
1957-11-25
Smallest sound recording and playback device
FR1039206A
(en )
1953-10-06
Advanced electromagnetic sound recording and reproduction device
DK87911C
(en )
1959-09-28
Magnetic sound recording and reproducing apparatus.
CH290634A
(en )
1953-05-15
Set-up for magnetic sound recorders and reproducers.
DE1633743U
(en )
1952-01-24
DEVICE FOR MAGNETIC SOUND RECORDING AND PLAYBACK.
FR1061712A
(en )
1954-04-14
Device for magnetic reproduction
DK78669C
(en )
1954-12-27
Apparatus for magnetic sound recording and reproduction.
CA470893A
(en )
1951-01-16
Magnetic recording methods and means
ES191134A1
(en )
1950-03-01
AN ELECTROMAGNETIC SOUND DEVICE
GR14842B
(en )
1953-11-25
SOUND RECORDING AND REPRODUCTION DEVICE.
DK78043C
(en )
1954-08-30
Device for audio recorders for gramophones.
FR1052541A
(en )
1954-01-25
Sound recording device