CH76217A
(en )
1917-11-16
Sound recording and reproducing machine for sound discs
CA194638A
(en )
1919-12-09
Sound recording and reproducing machine
US1548737A
(en )
1925-08-04
Sound record
CH79016A
(en )
1918-10-01
Sound amplifier for record speaking machines
FR467184A
(en )
1914-06-05
Reproduction disc for phonographs, and other speaking machines
FR484833A
(en )
1917-11-13
Improvement in phonograph records
ES68318A1
(en )
1918-12-16
Improvements in the diaphragms for talking machines for sound recording or reproducing machines.
FR459319A
(en )
1913-11-03
Talking machine for recording and reproduction
FR15803E
(en )
1912-10-04
Phonograph records
FR435525A
(en )
1912-03-04
Improvements to gramophone recorders and other speaking machines
CH71078A
(en )
1915-12-01
Machine for playing back sound recordings
CA177935A
(en )
1917-07-03
Sound reproducing machine
CA188407A
(en )
1919-01-28
Sound reproducing machine
CH74006A
(en )
1916-12-16
Disk spindle for paper spinning
FR481194A
(en )
1916-11-08
Reproducer for phonographs
CA188189A
(en )
1919-01-07
Phonograph record
CH79359A
(en )
1918-11-16
Sound reproducer for talking machine
GB182550A
(en )
1922-07-03
Improved means for driving the turntables of sound recording and reproducing machines
CA208059A
(en )
1921-02-01
Sound recording and reproducing machines
CA176271A
(en )
1917-04-10
Phonograph disc record cabinet
FR470360A
(en )
1914-09-08
Resonator apparatus reproducing vibrations recorded in sound, on discs, tapes, cylinders or other
FR441737A
(en )
1912-08-14
Improvements in the construction of speaking machines for the reproduction of recorded discs
FR441816A
(en )
1912-08-17
Phonograph records
FR511610A
(en )
1920-12-30
Talking machine and piano combined
FR425086A
(en )
1911-06-01
Recorder for disc phonographs