AU2745830A
(en )
1930-12-23
Improvement insound and picture record film
CA305437A
(en )
1930-11-04
Tinted sound and picture film
CA302548A
(en )
1930-07-29
Film for picture and sound reproduction
CA314831A
(en )
1931-09-01
Sound and picture record film
CA296462A
(en )
1930-01-07
Colour photography and colour cinematography
CA302625A
(en )
1930-07-29
Sound record motion picture film
CA305443A
(en )
1930-11-04
Sound record film
AU2990930A
(en )
1931-11-12
Improvements in film sound and picture reproducers
AU2501830A
(en )
1930-09-02
Combined sound and colour motion picture record
CA301284A
(en )
1930-06-17
Combined recorder and reproducer
AU2990930B
(en )
1931-11-12
Improvements in film sound and picture reproducers
AU2784030A
(en )
1931-07-23
Improvements in talking picture film projectors
CA304396A
(en )
1930-09-30
Visibly marked motion picture film
AU2699430A
(en )
1931-01-06
Improvement in photographic film for picture and sound reproduction
CA302412A
(en )
1930-07-29
Motion picture film
CA303620A
(en )
1930-09-02
Combined shutter and film moving mechanism
AU2699130A
(en )
1930-12-09
Improvement in combined motion picture and sound record
AU2699030A
(en )
1931-01-06
Improvement in combined motion picture and sound record
CA323514A
(en )
1932-06-21
Tone and picture film
CA330185A
(en )
1933-02-14
Colour picture and sound record
CA313763A
(en )
1931-07-28
Motion picture and sound record film
AU2490030A
(en )
1930-08-12
Improvements insound record film and method of preparing same
CA296380A
(en )
1930-01-07
Record strip
CA315838A
(en )
1931-10-06
Picture postcard with acoustic record
CA330580A
(en )
1933-02-28
Picture and sound film