AU130505B2
(en )
1946-11-28
Method of and apparatus for recording and reproducing electrical impulses, particularly sound impulses
AU674746A
(en )
1946-11-28
Method of and apparatus for recording and reproducing electrical impulses, particularly sound impulses
AU126866B2
(en )
1947-04-24
Process and arrangement forthe magnetic recording of electrical impulses and especially of sounds
AU126865B2
(en )
1947-04-24
Device forthe magnetic recording of electrical impulses, andin particular of sounds
CA426439A
(en )
1945-03-27
Sound recording and reproducing apparatus
AU1012847A
(en )
1947-04-24
Process and arrangement forthe magnetic recording of electrical impulses and especially of sounds
AU1012747A
(en )
1947-04-24
Device forthe magnetic recording of electrical impulses, andin particular of sounds
CA436956A
(en )
1946-09-17
Phonograph record cueing method and means
CA435372A
(en )
1946-06-18
Sound recording apparatus
CA437666A
(en )
1946-10-29
Sound recording apparatus
CA437665A
(en )
1946-10-29
Sound recording apparatus
CA435276A
(en )
1946-06-11
Sound recording apparatus
CA433837A
(en )
1946-03-26
Sound recording apparatus
CA437755A
(en )
1946-11-05
Magnetic recording method and means
CA443983A
(en )
1947-09-02
Recording and reproducing apparatus
CA429615A
(en )
1945-08-21
Phonograph record playing and changing apparatus
CA428710A
(en )
1945-07-10
Sound recording apparatus
CA432795A
(en )
1946-01-29
Signal reproducing apparatus
CA433062A
(en )
1946-02-12
Signal recording method
CA433063A
(en )
1946-02-12
Signal recording method
CA430830A
(en )
1945-10-23
Sound recording and reproduction
CA438183A
(en )
1946-11-26
Vibration recording and reproduction
CA428864A
(en )
1945-07-17
Sound recording apparatus control circuit
CA478644A
(en )
1951-11-20
Methods and apparatus for recording and reproducing electrical communication currents
AU137888B2
(en )
1947-11-06
Improved method of locating sound signals on sound record carriers