DK104687C
(en )
1966-06-20
Apparatus for recording and playing video signals.
DK78669C
(en )
1954-12-27
Apparatus for magnetic sound recording and reproduction.
DK88616C
(en )
1960-02-29
Apparatus for electromagnetic sound recording and reproduction.
DK80648C
(en )
1956-03-05
Tone head for magnetic sound recording and sound reproduction.
CH289208A
(en )
1953-02-28
Magnetic sound recording and reproducing device.
DK86119C
(en )
1958-08-25
Magnetic sound recording and reproducing apparatus.
DK87911C
(en )
1959-09-28
Magnetic sound recording and reproducing apparatus.
DK77396C
(en )
1954-04-12
Device for magnetic sound recording and reproducing apparatus.
AU164044B2
(en )
1952-03-13
Apparatus for magnetic sound-recording and sound reproduction
CA470893A
(en )
1951-01-16
Magnetic recording methods and means
CH319629A
(en )
1957-02-28
Sound recording and reproducing device
AT193628B
(en )
1957-11-25
Smallest sound recording and playback device
AU728952A
(en )
1952-03-13
Apparatus for magnetic sound-recording and sound reproduction
AT194154B
(en )
1957-12-27
Magnetic sound recording and reproducing device
DK78855C
(en )
1955-02-14
Apparatus for magnetic recording of sound oscillations on a linear carrier and for reproducing such.
DK77048C
(en )
1954-02-01
Apparatus for reproducing sound recorded on gramophone records.
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
DK82048C
(en )
1957-02-11
Device by an electromagnetic sound recording and reproducing apparatus.
CA495670A
(en )
1953-09-01
Magnetic recording and reproducing apparatus
DK82047C
(en )
1957-02-11
Tone head for a magnetic sound recording and reproducing apparatus.
AU154700B2
(en )
1951-05-10
Improvements relating to magnetic sound recording or reproducing apparatus
CH286170A
(en )
1952-10-15
Apparatus for recording or reproducing sound.
DK88159C
(en )
1959-11-16
Magnetic recording and reproducing apparatus.