CH24711A
(en )
1903-02-15
Apparatus for reproducing sounds after they have been recorded
FR366024A
(en )
1906-09-25
Apparatus for reproducing drawings
CH29252A
(en )
1904-07-31
Advanced device for sound reproduction
FR381644A
(en )
1908-01-16
Sound reproducing apparatus for phonographs and other speaking machines
CH24612A
(en )
1903-01-31
Device for multiple recording of sounds on phonographic cylinders
FR401639A
(en )
1909-09-06
Device for recording and playing music
FR400618A
(en )
1909-08-02
Method and apparatus for dividing sounds
FR333009A
(en )
1903-11-13
Apparatus for recording or producing sound in talking disc machines
CH25284A
(en )
1903-04-30
Advanced recording device
FR446119A
(en )
1912-11-27
Method and apparatus for labeling packages
CH71939A
(en )
1916-03-01
Sound reproduction apparatus for speaking machines
FR332337A
(en )
1903-10-26
Apparatus for the manufacture of recorded cylinders of phonographs
FR381493A
(en )
1908-01-13
Apparatus for phonographic recordings
FR417730A
(en )
1910-11-21
Method and apparatus for photographing sounds
FR421396A
(en )
1911-02-21
Apparatus for reproducing music in keyed musical instruments
FR334420A
(en )
1903-12-21
Symmetrograph device for the reproduction of counterpart drawings
FR356534A
(en )
1905-12-01
Method and apparatus for recording the progress of surveys
FR427905A
(en )
1911-08-17
Method and apparatus for recording sounds, more particularly applicable to gramophones
FR382E
(en )
1902-12-22
Apparatus for reproducing layers in artificial light
CH25025A
(en )
1903-03-31
Apparatus for reproducing layers in artificial light
FR328248A
(en )
1903-07-08
Method and apparatus for husking grains
FR374753A
(en )
1907-06-22
Method and apparatus for producing radioactive effects
FR431729A
(en )
1911-11-18
Method and mechanism for producing musical sounds
FR433450A
(en )
1912-01-06
Method and mechanism for producing musical sounds
FR370618A
(en )
1907-02-15
Method and apparatus for reproducing sounds recorded on an endless tape