AU2574935A
(en )
1937-01-14
Improvements in or relating to acoustic devices
AU102651B2
(en )
Improvements in or relating to loudspeakers
AU102777B2
(en )
1938-01-13
Improvements in or relating to photosculpture
AU102535B2
(en )
1937-12-02
Improvements in or relating to photosculpture
AU102709B2
(en )
1937-12-23
Improvements in or relating to telegraphones
AU43536A
(en )
1936-12-10
Improvements in or relating to microphones
AU2086935A
(en )
1936-01-23
Improvements in or relating to acoustic apparatus
AU479236A
(en )
1938-01-13
Improvements in or relating to photosculpture
AU479136A
(en )
1937-12-02
Improvements in or relating to photosculpture
AU516636A
(en )
1937-12-23
Improvements in or relating to telegraphones
AU100369B2
(en )
1937-03-04
Improvements in or relating to accordions
AU100088B2
(en )
1937-01-02
Improvements in or relating to telephone instruments
AU101186B2
(en )
1937-06-10
Improvements in or relating to frequency control lines
AU101819B2
(en )
1937-08-26
Improvements in or relating to change giving apparatus
AU100555B2
(en )
1937-03-25
Improvements in or relating to lubricating devices
AU101461B2
(en )
1937-07-08
Improvements in or relating to emulsions
AU102294B2
(en )
1937-11-04
Improvements in or relating to telephone systems
AU101043B2
(en )
1937-05-27
Improvements in or relating to telephone systems
AU101360B2
(en )
1937-07-01
Improvements in or relating to photoelectric devices
AU102751B2
(en )
Improvements in or relating to piezoelectric crystals
AU308236A
(en )
1937-03-04
Improvements in or relating to accordions
AU100420B2
(en )
1937-03-11
Improvements in flytraps
AU100906B2
(en )
1937-05-13
Improvements in alloysteels
AU102216B2
(en )
Improvements in harvester-thresher
AU102687B2
(en )
1937-12-16
Improvements in or relating to electro-optical devices