AU570027A
(en )
1927-05-24
Improvements in and relating to horns for talking machines andthe like
AU268026A
(en )
1926-12-31
Improvements in and relating to talking machines
AU2571825A
(en )
1926-11-09
Improvements in and relating to talking machines
AU1030727A
(en )
1928-10-30
Improvements in and relating to sheepshearing machines
AU1133028A
(en )
1928-12-18
Improvements in and relating to talking machines
AU2017524A
(en )
1925-11-04
Improvements in and relating to talking machines
AU2322825A
(en )
1926-04-27
Improvements in and relating to talking machines
AU2643525A
(en )
1926-12-31
Improvements in and relating to talking machines
AU852527A
(en )
1928-05-29
Improvements in or relating to talking machine record cutting devices andthe like
AU1503628A
(en )
1929-05-07
Improvements in and relating to sound reproducing machines
AU1503528A
(en )
1929-07-02
Improvements in and relating to sound reproducing machines
AU1193728A
(en )
1928-12-04
Improvements in and relating to sound reproducing machines
AU943527A
(en )
1928-06-19
Improvement in amplifying horns
AU2037124A
(en )
1925-10-27
Improvements in or relating to talking machines and the like
AU1596128A
(en )
1929-07-23
Improvements in and relating to talking machine records andthe manufacture thereof
AU592527A
(en )
1928-07-10
Improvements in and connected with talking machines
AU582027A
(en )
1928-02-07
Improvements in talking machines
AU682727A
(en )
1928-03-13
Improvements in talking machines
AU767727A
(en )
1927-11-02
Improvements in and relating to sound reproducing devices
AU539026A
(en )
1927-08-02
Improvements in and relating to effects machines
AU1992729A
(en )
1930-08-19
Improvements in and relating to talking machines
AU541827A
(en )
1927-05-24
Improvements in and relating to coursing apparatus
AU996827A
(en )
1928-03-27
Improvements in and relating to coursing apparatus
AU2559625A
(en )
1926-11-03
Improvements in and relating" to stopping means adapted to talking machines
AU1910729A
(en )
1929-09-10
Improvements in or relating to microphones