DK55927C
(en )
1939-03-13
Electric Discharge Tube with Metal Wall and Method for Manufacturing Its Connecting Body.
FR772900A
(en )
1934-11-07
Longitudinal welded metal pipe
DK54581C
(en )
1938-04-11
Electric Discharge Pipe.
DK55223C
(en )
1938-09-19
Electric Discharge Tube with Metal Wall.
DK56313C
(en )
1939-06-19
Electric High Pressure Metal Vapor Exhaust Pipe and Procedure for Adjusting the Tube Voltage.
DK56891C
(en )
1939-11-06
Electric Discharge Tube for High Performance and with Metallic Wall Node.
DK55014C
(en )
1938-07-25
Electric Discharge Pipe.
DK53584C
(en )
1937-09-13
Electric Discharge Pipe.
DK58988C
(en )
1941-09-01
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK54281C
(en )
1938-02-07
Electric Discharge Tube and Method for Manufacturing Such.
DK51234C
(en )
1936-02-03
Electrode for Electric Discharge Tubes and Procedure for Manufacturing the Electrode.
ES138096A1
(en )
1935-08-16
Improvements introduced in the manufacture of metal compressible tubes.
CH236656A
(en )
1945-02-28
Electric discharge tube and method for making it.
DK54208C
(en )
1938-01-24
Electric Discharge Pipe.
DK54741C
(en )
1938-05-16
Electric Discharge Pipe.
DK55503C
(en )
1938-11-28
Electric Discharge Pipe.
DK55554C
(en )
1938-12-12
Electric Discharge Pipe.
DK55675C
(en )
1939-01-09
Electric Discharge Pipe.
DK54282C
(en )
1938-02-07
Electric Discharge Pipe.
DK58468C
(en )
1941-03-03
Electric discharge pipe with at least partly metal wall.
DK59485C
(en )
1942-02-16
Procedure for the manufacture of electron tubes, in particular double-sided fused metal tubes.
DK58067C
(en )
1940-10-14
Procedure for the manufacture of electric discharge pipes with metal flask and disc-shaped glass base.
DK58371C
(en )
1941-01-27
Electric Discharge Tube with Secondary Emission Electrode and Method of Manufacturing.
DK55618C
(en )
1938-12-27
Metal vapor discharge pipe.
DK55952C
(en )
1939-03-20
Metal vapor discharge pipe.