NL28875C - - Google Patents

Info

Publication number: NL28875C
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.)

1930-01-22

Publication of NL28875C publication Critical patent/NL28875C/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

NL28875D 1930-01-22 NL28875C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL362627X		1930-01-22

Publications (1)

Publication Number	Publication Date
NL28875C true NL28875C (enrdf_load_html_response)

Family

ID=19785436

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL28875D NL28875C (enrdf_load_html_response)	1930-01-22

Country Status (5)

Country	Link
US (1)	US1875106A (enrdf_load_html_response)
DE (1)	DE625602C (enrdf_load_html_response)
FR (1)	FR708235A (enrdf_load_html_response)
GB (1)	GB362627A (enrdf_load_html_response)
NL (1)	NL28875C (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2456579A (en) *	1942-10-30	1948-12-14	Rca Corp	Electron discharge device for ultra high frequencies
GB810202A (en) *	1955-06-10	1959-03-11	Vickers Electrical Co Ltd	Improvements relating to thermionic cathodes for electron discharge devices

0
- NL NL28875D patent/NL28875C/xx active
1930
- 1930-11-12 GB GB34062/30A patent/GB362627A/en not_active Expired
- 1930-11-15 US US495806A patent/US1875106A/en not_active Expired - Lifetime
- 1930-12-22 FR FR708235D patent/FR708235A/fr not_active Expired
- 1930-12-24 DE DE1930625602D patent/DE625602C/de not_active Expired

Also Published As

Publication number	Publication date
DE625602C (de)	1936-02-12
FR708235A (fr)	1931-07-21
US1875106A (en)	1932-08-30
GB362627A (en)	1931-12-10

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