CH29252A
(en )
1904-07-31
Advanced device for sound reproduction
FR330042A
(en )
1903-08-11
Method and apparatus for recording and rendering sounds
CH24612A
(en )
1903-01-31
Device for multiple recording of sounds on phonographic cylinders
FR11086E
(en )
1909-12-04
Method and apparatus for dividing sounds
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
FR433888A
(en )
1912-01-18
Device for bundling and tying firewood
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
FR356534A
(en )
1905-12-01
Method and apparatus for recording the progress of surveys
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
FR370618A
(en )
1907-02-15
Method and apparatus for reproducing sounds recorded on an endless tape
FR346207A
(en )
1905-01-07
Recorder for phonographs
FR4637E
(en )
1905-09-02
Recorder for phonographs
FR669637A
(en )
1929-11-19
Method and apparatus for reproducing sounds recorded on sound films
FR378225A
(en )
1907-09-27
Apparatus for the graphic reproduction of tones and sounds, and their combinations
FR372539A
(en )
1907-04-10
Apparatus for molding recorded cylinders for phonographs
CH26589A
(en )
1903-09-30
Disc for music boxes