AT195138B
(en )
1958-01-25
Sound recording and reproducing device
CH334699A
(en )
1958-12-15
Magnetic sound recording and playback device
DK80648C
(en )
1956-03-05
Tone head for magnetic sound recording and sound reproduction.
AT191630B
(en )
1957-09-10
Sound recording and playback device
CH289208A
(en )
1953-02-28
Magnetic sound recording and reproducing device.
DK82047C
(en )
1957-02-11
Tone head for a magnetic sound recording and reproducing apparatus.
DK78669C
(en )
1954-12-27
Apparatus for magnetic sound recording and reproduction.
DK86119C
(en )
1958-08-25
Magnetic sound recording and reproducing apparatus.
AT194628B
(en )
1958-01-10
Drive mechanism for the sound recording and playback head of sound recording and playback devices
NL179689B
(en )
MAGNETIC RECORDING MEDIA.
AT193628B
(en )
1957-11-25
Smallest sound recording and playback device
DK87911C
(en )
1959-09-28
Magnetic sound recording and reproducing apparatus.
CH292852A
(en )
1953-08-31
Device for recording and reproducing sounds.
AT174221B
(en )
1953-03-10
Magnetic sound recording, reproducing and erasing head
CH319629A
(en )
1957-02-28
Sound recording and reproducing device
AT194154B
(en )
1957-12-27
Magnetic sound recording and reproducing device
DK77396C
(en )
1954-04-12
Device for magnetic sound recording and reproducing apparatus.
CA472023A
(en )
1951-03-06
Magnetic wire sound recording and reproducing apparatus
CA473186A
(en )
1951-04-24
Magnetic wire sound recording and reproducing apparatus
CA472022A
(en )
1951-03-06
Magnetic wire sound recording and reproducing apparatus
GR14842B
(en )
1953-11-25
SOUND RECORDING AND REPRODUCTION DEVICE.
FR1055547A
(en )
1954-02-19
Recording and reproduction of modulated ultrasound sounds
CA481677A
(en )
1952-03-11
Magnetic wire sound recording and reproducing apparatus
DE1633743U
(en )
1952-01-24
DEVICE FOR MAGNETIC SOUND RECORDING AND PLAYBACK.
CH290634A
(en )
1953-05-15
Set-up for magnetic sound recorders and reproducers.