CH217640A
(en )
1941-10-31
High frequency amplifier circuit.
CH233992A
(en )
1944-08-31
Electro-acoustic device.
GR8278B
(en )
1939-06-10
DEVICE FOR THE PERFECT AND EASIER RECEIPT OF SHORT WAVES ON THE RADIO.
CH212962A
(en )
1940-12-31
Support device on vehicles.
CH205928A
(en )
1939-07-15
Locking device on expanding mounts.
CH239867A
(en )
1945-11-15
Lifting and turning device on motor vehicles.
CH271263A
(en )
1950-10-15
Modulator device for radio waves.
GR8084B
(en )
1939-03-27
METHOD AND MEANS OF IMPROVEMENTS OF THE FLOUR MILL.
CH225679A
(en )
1943-02-15
Raster device.
CH219391A
(en )
1942-02-15
Tensioning device on winding machines and the like.
FR815810A
(en )
1937-07-23
Secret radio beacon on very short waves
GR8608B
(en )
1939-11-24
METHOD OF RENAISSANCE OF PLATED AND USED TIRES.
CH225937A
(en )
1943-02-28
Ultra short wave device with adjustable wavelength.
CH228691A
(en )
1943-09-15
Constant impedance unbalanced attenuator.
ES145471A1
(en )
1940-06-16
Vibratory device.
GR5183B
(en )
1935-03-27
NEW SYSTEM AND APPARATUS FOR CORPORATE WAVE SHAPING.
ES143882A1
(en )
1937-12-16
Device for the emission and reception of time signals.
GR8011B
(en )
1939-02-21
RADIO RECEIVER ANSWERES THE USED WAVE LENGTH WITHOUT TRANSMISSION SCALES FOR THE USE OF DOUBLE-METABLE FREQUENCY.
GR8422B
(en )
1939-08-10
SHIP INSULTABLE FROM BOMBS AND TORPTOLES.
ES145228A1
(en )
1940-08-16
Radio receiver apparatus.
GR7496B
(en )
1938-07-04
PERFECTIONS ON LIME AND NUCLEAR CARBONS.
DK57689C
(en )
1940-06-10
Signal device for trucks and similar vehicles.
GR8309B
(en )
1939-06-23
ADDITION AND REMOVAL INSTRUMENT.
GR7142B
(en )
1938-02-08
ELASTIC AND VARIABLE SEWER.
GR8299B
(en )
1939-06-19
PERFECTIONS ON PROTECTIVE SPRINGS FOR BOATS AND SMALL BOATS.