DK47599C
(en )
1933-07-31
Superheterodyne radio receiver for Receiving two or more Wave Areas.
DK53726C
(en )
1937-10-18
Coupling to Suppress Interference of Any Kind in Radio Receivers.
FR756082A
(en )
1933-12-04
Radio receiver
FR752130A
(en )
1933-09-16
Superheterodyne receiver
DK47476C
(en )
1933-06-26
Device by Radio Receivers.
FR746126A
(en )
1933-05-23
Superheterodyne receiver
DK45524C
(en )
1932-04-18
Device for Inventing the Setting of Radio Receivers.
DK49794C
(en )
1935-01-28
Superheterodyne Radio receiver.
CH160299A
(en )
1933-02-28
Remote tunable radio receiver.
DK45622C
(en )
1932-05-02
Device by Radio Receivers.
DK46310C
(en )
1932-10-10
Device by Radio Receivers.
DK48071C
(en )
1933-11-27
Antenna system for simultaneous connection of several Radio receivers.
DK50946C
(en )
1935-11-25
Radio receiver.
DK47097C
(en )
1933-03-20
Coupling to individual parts of radio receivers and the like.
FR733712A
(en )
1932-10-10
Superheterodyne receiver
FR733680A
(en )
1932-10-10
Superheterodyne receiver
ES121449A1
(en )
1931-02-16
Improvements in radio reception devices.
DK46739C
(en )
1933-01-09
Device for Setting Tuning Capacitors or Other Tuning Bodies in Radio Receivers.
ES122286A1
(en )
1931-04-16
Improvements in the reception of telegraphic signals.
DK52392C
(en )
1936-12-07
Coupling to Disturbance in Radio Receivers.
DK46212C
(en )
1932-09-19
Device for Radio Receivers.
ES118167A1
(en )
1930-06-16
Perfection in radio receiver equipment.
DK47653C
(en )
1933-08-14
Intermediate frequency overlay receiver.
DK47121C
(en )
1933-03-20
Intermediate frequency overlay receiver.
SU21241A1
(en )
1931-07-31
Superheterodyne Radio