CH24612A
(en )
1903-01-31
Device for multiple recording of sounds on phonographic cylinders
CH29252A
(en )
1904-07-31
Advanced device for sound reproduction
FR343590A
(en )
1904-10-10
Electrical apparatus for the transmission, reception, recording and reproduction of sound
FR332337A
(en )
1903-10-26
Apparatus for the manufacture of recorded cylinders of phonographs
FR366024A
(en )
1906-09-25
Apparatus for reproducing drawings
CH33590A
(en )
1906-04-15
Advanced device for the reproduction of writings
FR334420A
(en )
1903-12-21
Symmetrograph device for the reproduction of counterpart drawings
FR333009A
(en )
1903-11-13
Apparatus for recording or producing sound in talking disc machines
CH24954A
(en )
1903-03-15
Recording diaphragm for phonographs and graphones
FR334725A
(en )
1903-12-30
Regular recording of waves on discs for talking machines
CH24711A
(en )
1903-02-15
Apparatus for reproducing sounds after they have been recorded
FR459414A
(en )
1913-11-05
Method of recording sounds on discs or cylinders using microphones
FR6428E
(en )
1906-11-17
Thermal device for the reproduction and amplification of sounds
FR369594A
(en )
1907-01-15
Advanced device for reproduction of writings
FR401639A
(en )
1909-09-06
Device for recording and playing music
FR2002E
(en )
1903-11-24
Support for horn of phonographs and similar apparatus called the "faithful"
FR331987A
(en )
1903-10-10
Support for horn of phonographs and similar apparatus called the "faithful"
FR349047A
(en )
1905-05-08
Support for the bell and drum holder of phonographs
FR5386E
(en )
1906-03-27
Thermal device for the reproduction and amplification of sounds
FR6264E
(en )
1906-10-10
Thermal device for the reproduction and amplification of sounds
FR390339A
(en )
1908-10-02
Sound recording device
FR334692A
(en )
1903-12-29
Device for the reproduction of moving and talking scenes
FR345043A
(en )
1904-11-19
Apparatus for chloroforming called "auto-chloroformer"
FR346207A
(en )
1905-01-07
Recorder for phonographs
FR4637E
(en )
1905-09-02
Recorder for phonographs