NL74391C - - Google Patents

Info

Publication number: NL74391C
Authority: NL; Netherlands

Application number

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1946-10-16

Publication of NL74391C publication Critical patent/NL74391C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements

NL74391D 1946-10-16 NL74391C (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB30742/46A GB635981A (en)	1946-10-16	1946-10-16	Improvements in or relating to supporting means for electrically heated filaments

Publications (1)

Publication Number	Publication Date
NL74391C true NL74391C (de)

Family

ID=10312422

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL74391D NL74391C (de)	1946-10-16

Country Status (6)

Country	Link
US (1)	US2521714A (de)
BE (1)	BE477333A (de)
ES (1)	ES179745A1 (de)
FR (1)	FR957229A (de)
GB (1)	GB635981A (de)
NL (1)	NL74391C (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1965338A (en) *	1930-05-21	1934-07-03	Western Electric Co	Thermionic discharge device
US2226680A (en) *	1939-05-09	1940-12-31	Fed Telegraph Co	Vacuum tube cathode support
US2298608A (en) *	1939-11-07	1942-10-13	Sperry Gyroscope Co Inc	Memory type recorder
US2317222A (en) *	1941-03-20	1943-04-20	Bell Telephone Labor Inc	Electron discharge device
US2399004A (en) *	1943-02-12	1946-04-23	Gen Electric	Electric discharge device and method of fabrication
US2419124A (en) *	1943-11-10	1947-04-15	Westinghouse Electric Corp	Insulating means for metallic spacers in electron discharge devices
US2404042A (en) *	1944-10-12	1946-07-16	Westinghouse Electric Corp	Electron discharge device

0
- BE BE477333D patent/BE477333A/xx unknown
- FR FR957229D patent/FR957229A/fr not_active Expired
- NL NL74391D patent/NL74391C/xx active
1946
- 1946-10-16 GB GB30742/46A patent/GB635981A/en not_active Expired
1947
- 1947-09-16 ES ES0179745A patent/ES179745A1/es not_active Expired
- 1947-11-29 US US788785A patent/US2521714A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
BE477333A (de)
FR957229A (de)	1950-02-17
US2521714A (en)	1950-09-12
GB635981A (en)	1950-04-19
ES179745A1 (es)	1947-11-01

Publication	Publication Date	Title
BE463006A (de)	1946-08-12
FR957572A (de)	1950-02-21
FR955774A (de)	1950-01-19
AT165703B (de)	1950-04-11
FR905942A (de)	1946-01-30
FR905507A (de)	1946-01-10
FR957229A (de)	1950-02-17
AT189954B (de)
BE458843A (de)
BE462607A (de)
NL71172C (de)
NL63950C (de)
NL62283C (de)	1948-12-10
BE464529A (de)
BE375336A (de)
BE375456A (de)
BE405806A (de)
BE420493A (de)
BE438369A (de)
BE457263A (de)
BE457494A (de)
BE457672A (de)
BE457926A (de)
BE463599A (de)
BE459809A (de)