CH207810A
(en )
1939-11-30
Arrangement for remote control of a radio receiver.
CH237732A
(en )
1945-05-15
Arrangement for displaying a television picture.
CH226255A
(en )
1943-03-31
Procedure for determining the location using a rotating radio beacon.
CH215528A
(en )
1941-06-30
Arrangement for remote tuning of a wireless device using a moving coil system.
CH226770A
(en )
1943-04-30
Arrangement for tuning coils.
CH207426A
(en )
1939-10-31
Device for remote setting of a heterodyne receiver.
CH182821A
(en )
1936-02-29
High frequency coil with device for changing the inductance.
FR863091A
(en )
1941-03-22
Device for transforming a reciprocating rectilinear movement into a discontinuous rotary movement
CH216080A
(en )
1941-07-31
Arrangement for tuning a cavity resonator.
CH229215A
(en )
1943-10-15
Device for sensing at least one high-frequency line.
CH225653A
(en )
1943-02-15
Device for spark-free interruption of a current.
CH212950A
(en )
1940-12-31
Procedure for voltage-controlled frequency change.
CH209147A
(en )
1940-03-31
Pneumatic device for the control of a needle for re-knitting.
FR864962A
(en )
1941-05-09
Remote control device by counting
FR842719A
(en )
1939-06-19
Training for ergographers
DK59704C
(en )
1942-04-27
Coupling device for circular remote sensing systems.
AT160188B
(en )
1941-02-25
Remote control procedure.
ES145228A1
(en )
1940-08-16
Radio receiver apparatus.
CA378637A
(en )
1939-01-03
Radio tube biasing method
ES148453A1
(en )
1941-11-01
A FLYING LANZAHELLS APPARATUS
CH226557A
(en )
1943-04-15
Device for frequency multiplication.
DK69009C
(en )
1949-04-25
Ultra-high frequency device.
CH214514A
(en )
1941-04-30
Tuner for a high frequency device.
ES148462A1
(en )
1941-11-01
A TAPE SYSTEM FOR PROJECTIONS
ES5115Y
(en )
1942-01-16
Apparatus for air navigation.