AT73121B
(en )
1917-02-26
Method for recording lectures of a speaking machine and an accompanying mechanical game device with music tape drive.
CH61230A
(en )
1913-09-16
Device on record speaking machines for recording and reproducing sounds
US1013519A
(en )
1912-01-02
Musical record.
FR401639A
(en )
1909-09-06
Device for recording and playing music
CH70921A
(en )
1916-01-17
Method and device for recording and reproducing sounds on and from cinematograph films
AT52275B
(en )
1912-02-26
Device for automatic recording of the travel times and speed of ships.
CH49149A
(en )
1911-01-16
Apparatus for reproducing tones by approaching reproducers to phonogram carriers provided with sound grooves by means of a keyboard
FR436157A
(en )
1912-03-20
Apparatus for recording and playing phonographic records
FR431293A
(en )
1911-11-07
Improvement in phonographs
CH56622A
(en )
1912-11-16
Method and appart for playing wind instruments
CH57016A
(en )
1912-12-02
Drive device on wind and winding machines
CH48996A
(en )
1910-12-16
Further training in talking disc machines
CH58220A
(en )
1913-03-01
Device for the production of punched tape for setting excluded lines of text
CH49934A
(en )
1911-04-17
Method for recording and reproducing living, sound photographs for the purpose of synchronizing the cinematograph and the speaking machine
FR411352A
(en )
1910-06-15
Improvement in phonographs
CH58236A
(en )
1913-03-01
Device for the reliable forward movement of paper strips in recording instruments
CH42200A
(en )
1909-01-02
Method for recording sound images for sound reproducing apparatus
FR428866A
(en )
1911-09-09
Perforation training
CH41138A
(en )
1908-09-16
Apparatus for recording and reproducing sounds with friction drives
CH74653A
(en )
1917-03-16
Reproduction device and sound amplifier on phonographs
FR459319A
(en )
1913-11-03
Talking machine for recording and reproduction
FR451298A
(en )
1913-04-15
Gramophone refinements
GB191321658A
(en )
1914-02-05
Apparatus for Studying and Teaching Music.
CH76112A
(en )
1917-11-01
Method for the simultaneous recording and playback of motion and sound
FR427918A
(en )
1911-08-17
Mucilage enhancements