AT67281B
(en )
1914-12-28
Device for recording sound waves on phonograph records and reproducing them.
AT49078B
(en )
1911-07-25
Alarm apparatus for portable cassettes and similar containers.
AT70290B
(en )
1915-10-25
Method and device for checking the vibration state of the moving system of oscilloscopes (electrocardiographs).
AT48610B
(en )
1911-06-26
Sweating apparatus for paraffin and the like.
AT77463B
(en )
1919-08-11
Track recorder.
AT72531B
(en )
1916-10-10
Device for cutting strips of felt and the like. Waste.
AT48966B
(en )
1911-07-10
Mechanical playing device on accordions and other musical instruments.
AT70142B
(en )
1915-10-11
Method and device for increasing the performance of grinding apparatus.
AT57414B
(en )
1913-01-25
Method and device for driving vehicles.
GB190302099A
(en )
1904-01-07
Improvements in or relating to Phonographs, Graphophones, or like Sound Recording and Reproducing Instruments, and in Records therefor.
GB190322563A
(en )
1904-02-18
Method of Taking in Conjunction Phonographic and Kinematographic Records
AT57519B
(en )
1918-02-10
Device for pressing metal objects.
AT60146B
(en )
1913-07-10
Device for opening and closing roof fans.
AT60816B
(en )
1913-08-25
Method and device for preventing the propagation and effect of coal dust and firedamp explosions.
AT57470B
(en )
1913-01-25
Automatic safety device against crossing signals on single and double track lines.
AT35313B
(en )
1908-11-25
Brushing and tapping device on sifting machines.
AT57594B
(en )
1913-02-10
Foldable music stand.
US1543056A
(en )
1925-06-23
Sound reproducing or recording mechanism for phonographs
AT77701B
(en )
1919-08-11
Carburetor.
AT66280B
(en )
1914-08-25
Method and device for the detection of forgeries in printing and engraving.
AT51221B
(en )
1911-12-11
Motorboat.
AT50091B
(en )
1911-10-10
Device for generating a constant tone in alarm clocks.
AT31337B
(en )
1908-01-10
Gramophone sound box.
AT38292B
(en )
1909-08-10
Protective device on tram cars.
CH61230A
(en )
1913-09-16
Device on record speaking machines for recording and reproducing sounds