DK55313C
(en )
1938-10-10
Tilting device for TV receivers.
DK46975C
(en )
1933-02-20
Device for Superheterodyne Receivers for Suppressing Interfering Signal Fluctuations.
FR747556A
(en )
1933-06-20
Oscillator-modulator, in particular for superheterodyne receivers
DK46212C
(en )
1932-09-19
Device for Radio Receivers.
DK45622C
(en )
1932-05-02
Device by Radio Receivers.
DK46310C
(en )
1932-10-10
Device by Radio Receivers.
DK46309C
(en )
1932-10-10
Device for Adjusting the Volume of Radio Receivers.
DK47600C
(en )
1933-07-31
Circuit device for Radio receivers.
DK45524C
(en )
1932-04-18
Device for Inventing the Setting of Radio Receivers.
DK47476C
(en )
1933-06-26
Device by Radio Receivers.
DK48063C
(en )
1933-11-27
Device by Radio Receivers.
DK56624C
(en )
1939-09-04
Device for Radio Receivers for Indicating the Right Tune.
FR746126A
(en )
1933-05-23
Superheterodyne receiver
DK46193C
(en )
1932-09-12
Scale lighting device for Radio Receivers.
DK46925C
(en )
1933-02-13
Device for automatic volume control by radio receivers.
DK45747C
(en )
1932-05-30
Selection mechanism for Telegraph Receivers.
DK45661C
(en )
1932-05-09
Device for Receiving AC Signals.
DK47955C
(en )
1933-10-30
Device for Automatic Telephone Systems with Registers.
DK57307C
(en )
1940-02-26
Device by Receivers for Selective Receipt of Electric Waves.
DK56568C
(en )
1939-08-21
Device for Superheterodyne Receivers.
DK56459C
(en )
1939-07-24
Device for Radio Receivers for the Removal of Cracking Noise.
DK49183C
(en )
1934-08-27
Television Receiving System.
FR733712A
(en )
1932-10-10
Superheterodyne receiver
FR733680A
(en )
1932-10-10
Superheterodyne receiver
ES124268A1
(en )
1931-11-01
An automatic interceptor.