CH223989A
(en )
1942-10-31
Piezo crystal oscillator.
CH223334A
(en )
1942-09-15
DF method using oscillations of variable frequency.
CH221439A
(en )
1942-05-31
Electric discharge tube for generating ultra-high frequency oscillations.
CH213354A
(en )
1941-01-31
Receiver for modulated high frequency oscillations.
CH220365A
(en )
1942-03-31
Device for generating ultra-high frequency oscillations.
DK60575C
(en )
1943-02-08
Crystal controlled tube oscillator, especially for high frequency transmitters.
CH238067A
(en )
1945-06-15
High frequency tube amplifier.
CH212950A
(en )
1940-12-31
Procedure for voltage-controlled frequency change.
DK60944C
(en )
1943-05-24
Electron tubes, especially for ultra-high Frequency.
DK58329C
(en )
1941-01-13
Tunable Lecher system, especially for ultra-short Waves.
DK56596C
(en )
1939-08-28
Oscillator for Frequency Multiplication.
DK69009C
(en )
1949-04-25
Ultra-high frequency device.
DK60723C
(en )
1943-03-22
Pressed glass base for discharge tubes for very high frequency oscillations.
DK66012C
(en )
1947-12-08
Mixing coupling with diode tube, especially for very high frequency oscillations.
DK63589C
(en )
1945-06-11
Device for amplifiers for ultra-high frequency oscillations.
DK64242C
(en )
1946-01-21
Tuning mechanism for Radio receivers.
DK61410C
(en )
1943-10-11
Frequency detector, especially for Fine tuning of High Frequency Amplifiers.
DK67234C
(en )
1948-07-19
Distance meters, in particular Altimeters, which use frequency modulated oscillations.
DK70170C
(en )
1949-11-07
Apparatus for amplifying or generating ultra-high frequency oscillations.
CH235397A
(en )
1944-11-30
Frequency modulation circuit for at least approximately constant frequency deviation.
CA380162A
(en )
1939-03-21
Ultra-high frequency oscillator
ES145228A1
(en )
1940-08-16
Radio receiver apparatus.
DK52844C
(en )
1937-03-22
Oscillator for generating high frequency oscillations.
DK69334C
(en )
1949-06-13
Coupling for stabilizing oscillators for frequency modulated high frequency oscillations.
DK61969C
(en )
1944-02-28
Tube oscillator.