CH331575A
(en )
1958-07-31
Magnetic information storage device
FR1107894A
(en )
1956-01-05
Magnetic recording device
NL189735B
(en )
MAGNETIC RECORDING AND / OR DISPLAY DEVICE.
AT195138B
(en )
1958-01-25
Sound recording and reproducing device
CH334699A
(en )
1958-12-15
Magnetic sound recording and playback device
AT191630B
(en )
1957-09-10
Sound recording and playback device
FR1214350A
(en )
1960-04-07
Device for simultaneous recording of sound on several magnetic sheets
AT183243B
(en )
1955-09-26
Magnetic recorder
AT194154B
(en )
1957-12-27
Magnetic sound recording and reproducing device
CH319629A
(en )
1957-02-28
Sound recording and reproducing device
CH290631A
(en )
1953-05-15
Drive device in sound recording and reproducing devices for perforated magnetic tapes.
AT206198B
(en )
1959-11-10
Drive for devices for sound recording and reproduction
AT192647B
(en )
1957-10-25
Drive mechanism for magnetic sound recorders and players
DK87911C
(en )
1959-09-28
Magnetic sound recording and reproducing apparatus.
CH289208A
(en )
1953-02-28
Magnetic sound recording and reproducing device.
FR1109824A
(en )
1956-02-02
Magnetic recording and reproducing device
FR1081761A
(en )
1954-12-22
Magnetic sound recording and reproduction device
DK86119C
(en )
1958-08-25
Magnetic sound recording and reproducing apparatus.
CH392913A
(en )
1965-05-31
Magnetic sound recording and playback device
FR1146793A
(en )
1957-11-14
Transportable sound recording and reproduction device
FR1133313A
(en )
1957-03-26
Magnetic tape recording and playback device
FR1171551A
(en )
1959-01-28
Magnetic sound recording and reproducing device
GR14842B
(en )
1953-11-25
SOUND RECORDING AND REPRODUCTION DEVICE.
FR1114881A
(en )
1956-04-17
Magnetic recording transducer
DK88159C
(en )
1959-11-16
Magnetic recording and reproducing apparatus.