BE467619A - - Google Patents

Info

Publication number: BE467619A
Authority: BE; Belgium

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.)

1939-09-08

Publication of BE467619A publication Critical patent/BE467619A/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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters

BE467619D 1939-09-08 BE467619A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2542639A GB534575A (en)	1939-09-08	1939-09-08	Improvements in or relating to indirectly heated cathode structures for electron discharge devices

Publications (1)

Publication Number	Publication Date
BE467619A true BE467619A (enrdf_load_html_response)

Family

ID=10227468

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE467619D BE467619A (enrdf_load_html_response)	1939-09-08

Country Status (4)

Country	Link
BE (1)	BE467619A (enrdf_load_html_response)
ES (1)	ES176816A1 (enrdf_load_html_response)
FR (1)	FR943721A (enrdf_load_html_response)
GB (1)	GB534575A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2147732B (en) *	1983-10-07	1987-11-04	English Electric Valve Co Ltd	Improvements in or relating to travelling wave tubes

0
- BE BE467619D patent/BE467619A/xx unknown
1939
- 1939-09-08 GB GB2542639A patent/GB534575A/en not_active Expired
1946
- 1946-12-27 FR FR943721D patent/FR943721A/fr not_active Expired
1947
- 1947-02-15 ES ES176816A patent/ES176816A1/es not_active Expired

Also Published As

Publication number	Publication date
ES176816A1 (es)	1947-03-16
GB534575A (en)	1941-03-11
FR943721A (fr)	1949-03-16

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