CH234050A
(en )
1944-08-31
Arrangement with a Braunschweig tube.
CH208860A
(en )
1940-02-29
Cathode ray tubes, in particular for television purposes.
CH207146A
(en )
1939-09-30
Arrangement with a Brunswick tube with high vacuum, especially for television purposes.
CH215769A
(en )
1941-07-15
Cathode for electron tubes.
CH202655A
(en )
1939-01-31
Device with a liquid-cooled high pressure vapor discharge tube.
CH203409A
(en )
1939-03-15
Vacuum cleaner nozzle with swiveling suction nozzle.
CH209026A
(en )
1940-03-15
Vacuum vessel with holder for the same.
CH208935A
(en )
1940-03-15
Hand vacuum cleaner.
SU53850A1
(en )
1938-09-30
The method of obtaining a colorless resin of betulin
CH212929A
(en )
1940-12-31
Device with discharge vessel, in particular electron tube.
CH203223A
(en )
1939-02-28
Chiller with a rotary compressor.
CH206162A
(en )
1939-07-31
Vacuum cleaner.
CH207074A
(en )
1939-09-30
Vacuum cleaner.
ES142022A1
(en )
1936-09-01
A procedure, with the corresponding apparatus, for manufacturing elastic threads.
CH204510A
(en )
1939-05-15
Lying vacuum cleaner.
DK55471C
(en )
1938-11-21
Electron tube coupling.
DK57261C
(en )
1940-02-12
Vacuum cleaner nozzle.
DK55711C
(en )
1939-01-16
Vacuum cleaner nozzle.
CH208248A
(en )
1940-01-15
Discharge vessel, in particular for electron tubes.
GR7567B
(en )
1938-08-01
MECHANICAL ROLINDROME HANDCRAFT.
CH206587A
(en )
1939-08-15
Air island, especially for air defense.
DK55225C
(en )
1938-09-19
High vacuum valve tube.
ES143707A1
(en )
1937-07-01
A knitting machine, with the corresponding procedure to produce seamless stockings.
DK57895C
(en )
1940-08-19
Vacuum evaporator.
CH200931A
(en )
1938-10-31
Arrangement with discharge tube.