AU146086B2
(en )
1948-07-01
Improvements in or relating to headgear for electroacoustic transducers
AU2074248A
(en )
1948-07-01
Improvements in or relating to headgear for electroacoustic transducers
AU144474B2
(en )
1948-06-24
Improvements in or relating to electroacoustic transducers
AU144771B2
(en )
1948-09-09
Improvements in or relating to electroacoustic transducers
AU146085B2
(en )
1948-06-24
Improvements in or relating to electroacoustic transducers
AU2073748A
(en )
1948-06-24
Improvements in or relating to electroacoustic transducers
AU2073948A
(en )
1948-06-24
Improvements in or relating to electroacoustic transducers
AU2238948A
(en )
1948-09-09
Improvements in or relating to electroacoustic transducers
AU147859B2
(en )
1949-09-22
Improvements in or relating to electroacoustic transducers
AU148950B2
(en )
1948-03-04
Improvements in or relating to acoustic diaphragms
AU2888549A
(en )
1949-09-22
Improvements in or relating to electroacoustic transducers
AU139889B2
(en )
1948-09-16
Improvements in or relating to loudspeakers
AU149496B2
(en )
1951-03-01
Improvements in or relating to electroacoustic transducers
AU151752B2
(en )
1950-09-07
Improvements in or relating to electroacoustic transducers
AU1794548A
(en )
1948-03-04
Improvements in or relating to acoustic diaphragms
AU143856B2
(en )
1947-10-02
Improvements in or relating to electroacoustic transducers
CA451788A
(en )
1948-10-12
Piezoelectric transducer
AU143106B2
(en )
1948-03-04
Improvements relating to loudspeakers
AU2249448A
(en )
1948-09-16
Improvements in or relating to loudspeakers
AU142748B2
(en )
1948-06-10
Improvements in or relating to electrodynamic pickups
AU143597B2
(en )
1948-10-28
Improvements in or relating to loudspeaker units
AU3883050A
(en )
1951-03-01
Improvements in or relating to electroacoustic transducers
AU3543250A
(en )
1950-09-07
Improvements in or relating to electroacoustic transducers
AU141136B2
(en )
1948-11-11
Improvements relating to goggles
AU145448B2
(en )
1949-04-28
Improvements in or relating to granule type acoustic transducers