FR901379A
(en )
1945-07-25
Telegraphy by frequency variations
CH257595A
(en )
1948-10-15
Tunable ultra-high frequency apparatus.
DK73463C
(en )
1951-12-03
Apparatus for transmitting or generating electrical oscillations at very high frequencies.
DK70613C
(en )
1950-02-13
Apparatus for amplifying or generating very high frequency electrical oscillations.
DK67834C
(en )
1948-10-25
Apparatus for measuring frequencies.
DK64902C
(en )
1946-10-21
Apparatus for generating electrical oscillations with ultra-short wavelength.
DK74450C
(en )
1952-07-14
Apparatus for generating regular vibrations.
DK70939C
(en )
1950-05-01
Apparatus for generating a high frequency rotating field.
DK74641C
(en )
1952-09-01
Apparatus with lead-through conductors for very high frequencies.
DK71002C
(en )
1950-05-15
Apparatus for generating ultra-high frequency oscillations.
DK69853C
(en )
1949-09-12
Apparatus for generating or amplifying high-frequency oscillations.
DK69332C
(en )
1949-06-13
Apparatus for regulating the synchronous operation of telegraph apparatus.
DK67763C
(en )
1948-10-11
Coupling for transmitting high-frequency electrical oscillations.
DK62981C
(en )
1944-12-04
Apparatus for Killing Aal.
DK73278C
(en )
1951-10-29
Apparatus for adjusting the load of an X-ray tube.
DK66763C
(en )
1948-05-10
Apparatus for Providing Ultra High Frequency Electromagnetic Oscillations.
DK69442C
(en )
1949-06-27
Apparatus for amplitude limitation of a high frequency alternating voltage.
DK67728C
(en )
1948-10-04
Apparatus with an electron tube for generating, amplifying or converting ultra-high frequency oscillations.
DK63917C
(en )
1945-09-10
Apparatus for generating control frequencies for level control in multi-channel carrier frequency systems.
DK67638C
(en )
1948-09-20
Apparatus for generating two alternating voltages with frequencies which are in harmonic relationship.
DK69441C
(en )
1949-06-27
Apparatus for remote control of telegraph operators.
DK71307C
(en )
1950-07-31
Apparatus for instantaneous production of steam.
DK68128C
(en )
1948-12-13
Apparatus for generating photocopy.
DK65924C
(en )
1947-11-24
Apparatus with an Electron Tube for Ultra High Frequencies.
DK65378C
(en )
1947-02-03
Coupling for Expansion of Electrical Oscillations.