FR1060885A
(en )
1954-04-07
Method and devices for reproducing and recording images
FR1187616A
(en )
1959-09-14
Electrostatic recording and reproducing device
FR1064720A
(en )
1954-05-17
Device for magnetic recording and accumulation of data
FR1041699A
(en )
1953-10-26
Method and apparatus for recording and reproducing sounds on magnetic paper
CH351415A
(en )
1961-01-15
Machine for magnetic sound recording and reproduction
CH323038A
(en )
1957-07-15
Device for magnetic recording and reproduction of sounds
FR1066423A
(en )
1954-06-04
Apparatus for recording and reproducing sounds
FR1007289A
(en )
1952-05-05
Method and device for recording and reproducing sounds
FR1109824A
(en )
1956-02-02
Magnetic recording and reproducing device
FR1111096A
(en )
1956-02-22
Drive mechanism for magnetic recorders and reproducers
FR1113277A
(en )
1956-03-26
Method and device for recording and reproducing sounds
FR1094941A
(en )
1955-05-25
Magnetic duplicate disc for recording and reproducing sounds
FR1121725A
(en )
1956-08-24
Device for magnetic recording of sound on cinematographic film and sound reproduction
FR1090804A
(en )
1955-04-04
Method and device for recording and reproducing sounds
FR1181649A
(en )
1959-06-17
Improvement in magnetic devices for recording and reproducing sounds
FR1081761A
(en )
1954-12-22
Magnetic sound recording and reproduction device
FR1022874A
(en )
1953-03-11
Apparatus for recording and reproducing sounds
FR1146793A
(en )
1957-11-14
Transportable sound recording and reproduction device
FR1050390A
(en )
1954-01-07
Sound recording and reproducing apparatus
FR1239255A
(en )
1960-08-19
Magnetic tape device for recording and reproducing sound
FR1154513A
(en )
1958-04-11
Device for recording and reproducing magnetic recordings
FR1047277A
(en )
1953-12-14
Magnetic sound recording and reproducing apparatus
FR1171551A
(en )
1959-01-28
Magnetic sound recording and reproducing device
FR1233514A
(en )
1960-10-12
Apparatus for magnetic recording and reproduction of messages
BE604623A
(en )
1961-12-05
Device for recording and magnetic reproduction of sounds.