DK55200C
(en )
1938-09-12
Artificially cooled Mercury vapor discharge pipe.
DK54415C
(en )
1938-03-07
Electric Discharge Pipe.
DK57199C
(en )
1940-01-29
Artificially cooled High pressure mercury vapor discharge tubes and Procedure for its manufacture.
DK51485C
(en )
1936-04-06
Electrical Discharge Pipe and Procedure for Its Manufacture.
DK54581C
(en )
1938-04-11
Electric Discharge Pipe.
DK52328C
(en )
1936-11-16
Refrigeration and Procedure for its Manufacture.
DK51613C
(en )
1936-05-11
Bookbinding and Procedure for its Manufacture.
DK52633C
(en )
1937-02-01
Procedure for the manufacture of sheet metal, tape, tubes, rods and wires.
DK52667C
(en )
1937-02-08
Electric Discharge Pipe.
DK51819C
(en )
1936-06-29
Electric Discharge Pipe.
DK52009C
(en )
1936-08-10
Electric Discharge Pipe.
DK52422C
(en )
1936-12-14
Electric Discharge Pipe.
DK51944C
(en )
1936-07-27
Electric Discharge Pipe.
DK54003C
(en )
1937-12-13
Electric Discharge Pipe.
DK57018C
(en )
1939-12-11
Electric Discharge Pipe.
DK51982C
(en )
1936-08-10
Electric Discharge Pipe.
DK52072C
(en )
1936-08-31
Cathode for electric discharge pipes.
DK53480C
(en )
1937-08-23
High pressure discharge pipe.
DK51428C
(en )
1936-03-23
Discharge pipes.
DK54281C
(en )
1938-02-07
Electric Discharge Tube and Method for Manufacturing Such.
DK55646C
(en )
1939-01-02
Electron Tube and Coupling for its Application.
DK52120C
(en )
1936-09-07
Vulcanizing agent and method of its manufacture.
DK57433C
(en )
1940-04-01
Electrical Resistance Element and Procedure for Its Manufacture.
DK35679C
(en )
1926-02-22
Electrical Discharge Pipe and Procedure for Its Manufacture.
DK53584C
(en )
1937-09-13
Electric Discharge Pipe.