DK45409C
(en )
1932-03-21
Magnetic Coupling Device for a Low Frequency Transformer, in particular for Radio Receivers.
SU24916A1
(en )
1932-01-31
Antenna switch
SU24913A1
(en )
1932-01-31
Radio transmitter
DK47476C
(en )
1933-06-26
Device by Radio Receivers.
DK43928C
(en )
1931-03-30
Connecting device for tuners for tuning coils in radios.
DK37666C
(en )
1927-07-04
Coupling device for Radio Receivers.
CA298067A
(en )
1930-03-04
Tuned radio frequency transformer
DK50580C
(en )
1935-08-26
Tuning device for High Frequency Current Devices, in particular Radio Devices.
DK47767C
(en )
1933-09-11
Coupling device for Radio receivers.
DK36101C
(en )
1926-06-14
Device for Antenna Coils for Radio Receivers.
AU250431A
(en )
1932-06-16
Magnetic coupling device for low frequency amplification transformers, particularly for wireless receivers
CH160299A
(en )
1933-02-28
Remote tunable radio receiver.
ES118167A1
(en )
1930-06-16
Perfection in radio receiver equipment.
DK36866C
(en )
1926-12-06
Adjustable Coupling Coil for Wireless Receivers and the like.
DK39645C
(en )
1928-12-27
Coil device for Radio receivers.
CA311563A
(en )
1931-05-19
Tuned radio frequency coupling device
CA259876A
(en )
1926-04-20
Radio inductance device
IE12116L
(en )
1931-01-26
Wireless receivers.
DK48130C
(en )
1933-12-11
Resonance marking device for Radio receivers.
CA297371A
(en )
1930-02-04
Radio-frequency amplifying circuit
CA296395A
(en )
1930-01-07
Radio transmitting device
DK46361C
(en )
1932-10-24
Coil coupler for radios.
AU2818630B
(en )
1931-08-13
Portable radio receiver
CA259308A
(en )
1926-03-30
Radio tuning device
DK41580C
(en )
1930-02-03
Device for radio transmitters and radio receivers.