ES176051A1
(en )
1947-01-16
ELECTRON DISCHARGE APPARATUS
DK60967C
(en )
1943-05-31
Apparatus with an electric Gaseous discharge tube.
DK67193C
(en )
1948-07-12
Apparatus with an electric discharge tube with at least three grids.
CH224049A
(en )
1942-10-31
Electric discharge tube.
DK59210C
(en )
1941-11-17
Apparatus with an electric Multiplier type discharge tube.
DK58773C
(en )
1941-06-16
Apparatus with an Electron Multiplier Tube.
DK63085C
(en )
1945-01-08
Apparatus for generating a high frequency AC voltage, preferably for measuring purposes.
FI21059A
(en )
1946-02-11
Apparatus for electroacoustic lighting
DK80497C
(en )
1956-02-06
Electric discharge tube with mica centering disc.
FR988448A
(en )
1951-08-27
Electrical discharge apparatus
AU113936B2
(en )
1941-10-09
High frequency apparatus
AU113321B2
(en )
1941-06-26
High frequency apparatus
DK62248C
(en )
1944-05-15
Apparatus for measuring the frequency curve for broadband cables.
DK63801C
(en )
1945-08-13
Apparatus for AC Telegraphy with Frequency Doubling.
DK72202C
(en )
1951-02-26
Apparatus for drying gases.
CA393040A
(en )
1940-12-10
High voltage apparatus
DK80639C
(en )
1956-03-05
Apparatus with an electron beam type electric discharge tube.
DK76650C
(en )
1953-11-09
Apparatus with an electron beam type electric discharge tube.
CA391052A
(en )
1940-09-03
Tube welding apparatus
CA392309A
(en )
1940-11-05
Electric discharge apparatus
CA393056A
(en )
1940-12-10
Electric discharge apparatus
CA391787A
(en )
1940-10-08
Electric discharge apparatus
CA392181A
(en )
1940-10-29
Electric discharge apparatus
CA390239A
(en )
1940-07-23
Electric discharge apparatus
DK82122C
(en )
1957-02-18
Electric discharge tube with a mica centering disc.