AU165307B2
(en )
1953-12-03
Improvements in or relating to sound recording and reproduction
AU2184553A
(en )
1953-12-03
Improvements in or relating to sound recording and reproduction
AU165817B2
(en )
Improvements in or relating to magnetic recording, and reproducing sound unit
AU159315B2
(en )
1953-03-26
Improvements in and relating to pickups for sound reproduction
AU167119B2
(en )
1953-09-17
Improvements in and relating to sound reproducing apparatus
AU200594B2
(en )
1954-11-11
Improvements in or relating to sound recording and reproducing devices
AU1553453A
(en )
1953-03-26
Improvements in and relating to pickups for sound reproduction
AU160068B2
(en )
1953-11-19
Improvements in or relating to sound reproducing devices
AU1977553A
(en )
1953-09-17
Improvements in and relating to sound reproducing apparatus
AU16454A
(en )
1954-11-11
Improvements in or relating to sound recording and reproducing devices
AU165210B2
(en )
1953-04-30
Improvements in or relating to electromagnetic recording and reproducing
AU157800B2
(en )
Improvements in or relating to magnetic sound recorders and reproducers
AU2140753A
(en )
1953-11-19
Improvements in or relating to sound reproducing devices
AU1638153A
(en )
1953-04-30
Improvements in or relating to electromagnetic recording and reproducing
AU220357B2
(en )
1958-01-09
Improvements in or relating to sound recording and reproduction
AU203700B2
(en )
1955-12-01
Improvements in combined book and related sound record
AU153947B2
(en )
1952-04-24
Improvements in and relating to sound reproducing apparatus
AU158353B2
(en )
1953-08-20
Improvements in or relating to electric recording and reproducing apparatus
AU152528B2
(en )
1950-04-20
Improvements in or relating to sound recording and reproducing apparatus
CA503397A
(en )
1954-06-01
Sound recording and reproducing machine
AU2931657A
(en )
1958-01-09
Improvements in or relating to sound recording and reproduction
AU932355A
(en )
1955-12-01
Improvements in combined book and related sound record
AU159124B2
(en )
1952-03-20
Improvements in or relating to magnetic sound recording methods and recording heads therefor
AU798752A
(en )
1952-04-24
Improvements in and relating to sound reproducing apparatus
AU1921453A
(en )
1953-08-20
Improvements in or relating to electric recording and reproducing apparatus