BE440174A - - Google Patents

Info

Publication number: BE440174A
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.)

1939-06-06

Publication of BE440174A publication Critical patent/BE440174A/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

BE440174D 1939-06-06 BE440174A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL217330X		1939-06-06

Publications (1)

Publication Number	Publication Date
BE440174A true BE440174A (enrdf_load_html_response)

Family

ID=19779131

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE440174D BE440174A (enrdf_load_html_response)	1939-06-06

Country Status (7)

Country	Link
US (1)	US2340631A (enrdf_load_html_response)
BE (1)	BE440174A (enrdf_load_html_response)
CH (1)	CH217330A (enrdf_load_html_response)
DE (1)	DE1074764B (enrdf_load_html_response)
FR (1)	FR868395A (enrdf_load_html_response)
GB (2)	GB544225A (enrdf_load_html_response)
NL (1)	NL52549C (enrdf_load_html_response)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE477662A (enrdf_load_html_response) *	1939-07-28
BE450216A (enrdf_load_html_response) *	1942-04-17
US2674661A (en) *	1948-08-12	1954-04-06	Rca Corp	Electron multiplier device
US2909702A (en) *	1948-10-01	1959-10-20	Siemens Ag	Discharge vessel cooled by radiation
US2675431A (en) *	1949-08-18	1954-04-13	Nat Union Radio Corp	Transit time compensated multiplier tube

0
- NL NL52549D patent/NL52549C/xx active
- BE BE440174D patent/BE440174A/xx unknown
- DE DENDAT1074764D patent/DE1074764B/de active Pending
1940
- 1940-06-03 GB GB9704/40A patent/GB544225A/en not_active Expired
- 1940-12-26 FR FR868395D patent/FR868395A/fr not_active Expired
- 1940-12-31 CH CH217330D patent/CH217330A/de unknown
1941
- 1941-08-21 US US407735A patent/US2340631A/en not_active Expired - Lifetime
1947
- 1947-12-31 GB GB35179/47A patent/GB629881A/en not_active Expired

Also Published As

Publication number	Publication date
DE1074764B (de)	1960-02-04
FR868395A (fr)	1941-12-29
GB629881A (en)	1949-09-29
US2340631A (en)	1944-02-01
GB544225A (en)	1942-04-02
CH217330A (de)	1941-10-15
NL52549C (enrdf_load_html_response)

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