BE450216A - - Google Patents

Info

Publication number: BE450216A
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.)

1942-04-17

Publication of BE450216A publication Critical patent/BE450216A/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

BE450216D 1942-04-17 BE450216A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL614457X		1942-04-17

Publications (1)

Publication Number	Publication Date
BE450216A true BE450216A (en)

Family

ID=19788205

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE450216D BE450216A (en)	1942-04-17

Country Status (5)

Country	Link
US (1)	US2530743A (en)
BE (1)	BE450216A (en)
DE (1)	DE868028C (en)
FR (1)	FR894033A (en)
GB (1)	GB614457A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2042951A (en) *	1930-04-05	1936-06-02	Westinghouse Lamp Co	Electron discharge device
US2095337A (en) *	1934-11-14	1937-10-12	Everett P Loppacker	Vacuum tube electrode
AT160558B (en) *	1937-02-23	1941-07-25	Philips Patentverwaltung	Electric discharge tube.
BE433417A (en) *	1938-03-25
US2223001A (en) *	1939-04-24	1940-11-26	Farnsworth Television & Radio	High efficiency amplifier
NL52549C (en) *	1939-06-06

0
- BE BE450216D patent/BE450216A/xx unknown
1943
- 1943-04-15 FR FR894033D patent/FR894033A/en not_active Expired
- 1943-04-16 DE DEN2381D patent/DE868028C/en not_active Expired
1946
- 1946-05-09 US US668531A patent/US2530743A/en not_active Expired - Lifetime
- 1946-07-04 GB GB20016/46A patent/GB614457A/en not_active Expired

Also Published As

Publication number	Publication date
GB614457A (en)	1948-12-15
FR894033A (en)	1944-12-12
US2530743A (en)	1950-11-21
DE868028C (en)	1953-02-23

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FR890501A (en)	1944-02-10
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