CH261753A
(en )
1949-05-31
Electronic tube for very high frequencies.
ES176051A1
(en )
1947-01-16
ELECTRON DISCHARGE APPARATUS
CH209236A
(en )
1940-03-31
Gas discharge tube lamp.
CH266782A
(en )
1950-02-15
Magnetron oscillator.
FR948341A
(en )
1949-07-28
Advanced discharge tube
DK60723C
(en )
1943-03-22
Pressed glass base for discharge tubes for very high frequency oscillations.
DK60416C
(en )
1942-12-14
System with a gaseous Glow Electrode Discharge Tube.
CH229754A
(en )
1943-11-15
Tunable oscillation circuit for ultra-short waves.
CH260975A
(en )
1949-04-15
Electronic tube for very high frequency.
CH234435A
(en )
1944-09-30
Discharge tube for generating ultra high frequency oscillations.
CH220855A
(en )
1942-04-30
Pressed glass base for discharge vessel.
CH233005A
(en )
1944-06-30
Switch for concentric high frequency lines.
CH231437A
(en )
1944-03-15
High frequency amplifier circuit.
DK61952C
(en )
1944-02-21
Electric Discharge Tube for Amplification of High Frequency Oscillations.
CH217878A
(en )
1941-11-15
Cathode for ultra-short wave tubes.
DK68848C
(en )
1949-04-04
Electric discharge tube with glass container for producing particularly short electric waves.
CH267008A
(en )
1950-02-28
Magnetron oscillator.
DK60600C
(en )
1943-02-15
Method for Manufacturing Pressed Glass Feet for Electron Tubes or Similar Discharge Containers.
DK60575C
(en )
1943-02-08
Crystal controlled tube oscillator, especially for high frequency transmitters.
DK67150C
(en )
1948-07-05
Electric discharge tubes, in particular for generating ultra-high frequency oscillations.
DK80288C
(en )
1955-12-19
Electron discharge device for generating ultra-high frequency electric oscillations.
FR971901A
(en )
1951-01-23
Very high frequency electron tube
AT156041B
(en )
1939-04-25
High frequency electrode.
DK66554C
(en )
1948-04-05
Systems for Frequency Transformation of High Frequency Oscillations.
ES153384A1
(en )
1943-03-01
A QUARTZ OSCILLATOR, ESPECIALLY FOR HIGH FREQUENCY EMITTERS