AU215092B2
(en )
1956-11-08
Improvements in magnetic sound recording apparatus
AU1797356A
(en )
1956-11-08
Improvements in magnetic sound recording apparatus
AU207726B2
(en )
1955-09-22
Miniature magnetic sound recording and reproducing apparatus
AU769855A
(en )
1955-09-22
Miniature magnetic sound recording and reproducing apparatus
CA518126A
(en )
1955-11-08
Sound recording and reproducing apparatus
CA514257A
(en )
1955-06-28
Magnetic recording and reproducing
CA514554A
(en )
1955-07-12
Sound recording or reproducing apparatus
CA511174A
(en )
1955-03-22
Magnetic recording and reproducing system
CA517799A
(en )
1955-10-25
Magnetic recording and reproducing system
CA495670A
(en )
1953-09-01
Magnetic recording and reproducing apparatus
AU210582B2
(en )
1956-02-09
Improvements in magnetic recording and/or reproducing apparatus
AU164044B2
(en )
1952-03-13
Apparatus for magnetic sound-recording and sound reproduction
CA524523A
(en )
1956-05-01
Sound recording or reproducing apparatus
CA496276A
(en )
1953-09-22
Magnetic recording and reproducing
CA502578A
(en )
1954-05-18
Magnetic recording and reproducing
CA501844A
(en )
1954-04-27
Magnetic recording and reproducing
AU1114455A
(en )
1956-02-09
Improvements in magnetic recording and/or reproducing apparatus
AU728952A
(en )
1952-03-13
Apparatus for magnetic sound-recording and sound reproduction
CA503397A
(en )
1954-06-01
Sound recording and reproducing machine
CA481677A
(en )
1952-03-11
Magnetic wire sound recording and reproducing apparatus
AU214587B2
(en )
1956-01-19
Improvements in or relating tothe recording and reproduction of disc sound recordings
CA504472A
(en )
1954-07-20
Method of recording and reproducing the sound
CA521652A
(en )
1956-02-07
Magnetic recording and reproducing
CA530468A
(en )
1956-09-18
Magnetic recording and reproducing
CA501829A
(en )
1954-04-27
Magnetic sound recording medium