CH44854A
(en )
1909-09-16
Bell horns for gramophones and phonographs
AU1130608B
(en )
1909-05-04
Improved horn for gramophones phonographs and suchlike instruments
FR386276A
(en )
1908-06-09
Acoustic horn
FR396906A
(en )
1909-04-24
Sound recorders and reproducers
FI3865A
(en )
1909-10-21
Gramophone sound membrane enhancement
FR400416A
(en )
1909-07-27
Gramophone refinements
FR388252A
(en )
1908-08-07
Box of phonographs
ES37342A3
(en )
1906-01-16
Improvements in sound recorders for gramophones and analog instruments sound recorders and reproducers.
AU1579209B
(en )
1910-04-05
Improvements relating to sound reproducing and recording instruments
FR386218A
(en )
1908-06-08
Phonograph
FR388061A
(en )
1908-08-01
Phonograph
FR374163A
(en )
1907-06-06
Compressed air speaker for phonographs and gramophones
FR7521E
(en )
1907-08-21
Compressed air speaker for phonographs and gramophones
FR7730E
(en )
1907-10-01
Compressed air speaker for phonographs and gramophones
FR389725A
(en )
1908-09-16
Record recorder for phonographs
FR403982A
(en )
1909-11-19
Acoustic horn
AU1130608A
(en )
1909-05-04
Improved horn for gramophones phonographs and suchlike instruments
FR397434A
(en )
1909-05-07
Reproduction arrangement for phonographs
FR405273A
(en )
1909-12-24
Sound reproduction system
FR401639A
(en )
1909-09-06
Device for recording and playing music
CA115776A
(en )
1908-12-22
Sound reproducer
FR398853A
(en )
1909-06-16
Pavilion for phonographs
CH36572A
(en )
1907-01-31
Reproducer for phonographs
FR376092A
(en )
1907-07-30
Acoustic horn
FR396482A
(en )
1909-04-13
Detachable horn for phonographs and all speaking machines