DK50698C
(en )
1935-09-30
Electrodynamic sound reproducing apparatus.
CH184548A
(en )
1936-05-31
Track vehicle.
DK52622C
(en )
1937-01-25
Apparatus for generating sound signals for vehicles, in particular motor vehicles.
DK52079C
(en )
1936-08-31
Apparatus for Generating Short Waves.
DK51736C
(en )
1936-06-08
Magnetic system, in particular for electroacoustic apparatus.
FR736369A
(en )
1932-11-23
Improvements at t receiving stations. s. f.
DK48567C
(en )
1934-03-26
Apparatus for producing sound.
DK52223C
(en )
1936-09-28
Electromagnetic recording apparatus, in particular for recording sound tracks.
DK54244C
(en )
1938-01-31
Acoustic Apparatus.
DK51855C
(en )
1936-07-06
Acoustic Apparatus.
FR792772A
(en )
1936-01-10
Improvements at t receiving stations. s. f.
DK51642C
(en )
1936-05-18
Apparatus for Examining the Position of the Railways.
FR728064A
(en )
1932-06-29
Apparatus for preparing emulsions, mixtures, etc.
DK50233C
(en )
1935-05-13
Apparatus for Reaching Skins.
ES129214A1
(en )
1933-03-16
An improved procedure for impressing sound films.
FR783196A
(en )
1935-07-09
Adjustment system for t stations. s. f.
DK54468C
(en )
1938-03-14
Apparatus for Receiving Sound Waves.
DK52652C
(en )
1937-02-01
Device for Streamlined Vehicles for Dust Reduction.
ES126273A1
(en )
1932-05-01
Electric functioning lacryrring apparatus.
DK50746C
(en )
1935-10-07
Apparatus for Cutting Foods.
ES133058A1
(en )
1934-03-01
Foam producing apparatus.
DK51820C
(en )
1936-06-29
Apparatus for reproducing sound.
ES1255Y
(en )
1933-05-01
Duplicator apparatus.
DK51686C
(en )
1936-05-25
Acoustic Apparatus.
ES127760A1
(en )
1932-10-01
Multicopter apparatus.