NL72121C - - Google Patents

Info

Publication number: NL72121C
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.)

1945-10-24

Publication of NL72121C publication Critical patent/NL72121C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes

NL72121D 1945-10-24 NL72121C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB20673/44A GB601966A (en)	1945-10-24	1945-10-24	Improvements in or relating to electron discharge devices

Publications (1)

Publication Number	Publication Date
NL72121C true NL72121C (enrdf_load_html_response)

Family

ID=32188948

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL72121D NL72121C (enrdf_load_html_response)	1945-10-24

Country Status (6)

Country	Link
US (1)	US2602905A (enrdf_load_html_response)
CH (1)	CH271504A (enrdf_load_html_response)
DE (1)	DE818820C (enrdf_load_html_response)
FR (1)	FR958107A (enrdf_load_html_response)
GB (2)	GB601966A (enrdf_load_html_response)
NL (1)	NL72121C (enrdf_load_html_response)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE970327C (de) *	1936-03-07	1958-09-11	Pintsch Bamag Ag	Einrichtung zum Buendeln ultrakurzer elektromagnetischer Wellen
NL48109C (enrdf_load_html_response) *	1937-02-23
NL50262C (enrdf_load_html_response) *	1937-03-30
BE428074A (enrdf_load_html_response) *	1937-05-14
US2390701A (en) *	1943-01-27	1945-12-11	Rca Corp	Secondary electron emitter

0
- FR FR958107D patent/FR958107A/fr not_active Expired
- NL NL72121D patent/NL72121C/xx active
1945
- 1945-10-24 GB GB20673/44A patent/GB601966A/en not_active Expired
- 1945-10-24 GB GB1676/48A patent/GB646303A/en not_active Expired
1946
- 1946-09-07 US US695531A patent/US2602905A/en not_active Expired - Lifetime
1947
- 1947-12-29 CH CH271504D patent/CH271504A/de unknown
1949
- 1949-03-01 DE DEP35318D patent/DE818820C/de not_active Expired

Also Published As

Publication number	Publication date
FR958107A (enrdf_load_html_response)	1950-03-03
GB646303A (en)	1950-11-22
GB601966A (en)	1948-05-18
CH271504A (de)	1950-10-31
US2602905A (en)	1952-07-08
DE818820C (de)	1951-10-29

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