NL24661C - - Google Patents

Info

Publication number: NL24661C
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.)

1927-11-16

Publication of NL24661C publication Critical patent/NL24661C/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

NL24661D 1927-11-16 NL24661C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US233537A US1945746A (en)	1927-11-16	1927-11-16	Electron discharge device with indirectly heated cathode

Publications (1)

Publication Number	Publication Date
NL24661C true NL24661C (enrdf_load_html_response)

Family

ID=22877646

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL24661D NL24661C (enrdf_load_html_response)	1927-11-16

Country Status (3)

Country	Link
US (2)	US1945746A (enrdf_load_html_response)
GB (1)	GB300613A (enrdf_load_html_response)
NL (1)	NL24661C (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3191089A (en) *		1965-06-22		Thermionic valve cathode
BE487889A (enrdf_load_html_response) *	1948-03-15
US2909699A (en) *	1957-12-05	1959-10-20	Sylvania Electric Prod	Electron discharge device

0
- US US19870D patent/USRE19870E/en not_active Expired
- NL NL24661D patent/NL24661C/xx active
1927
- 1927-11-16 US US233537A patent/US1945746A/en not_active Expired - Lifetime
1928
- 1928-11-14 GB GB33382/28A patent/GB300613A/en not_active Expired

Also Published As

Publication number	Publication date
GB300613A (en)	1929-06-20
US1945746A (en)	1934-02-06
USRE19870E (en)	1936-02-25

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