FR1557390A - - Google Patents

Info

Publication number: FR1557390A
Authority: FR; France
Legal status (The legal status 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 status listed.): Expired

Application number

Other languages

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.)

1967-03-15

Filing date

1968-03-13

Publication date

1969-02-14

1968-03-13 Application filed filed Critical

1969-02-14 Application granted granted Critical

1969-02-14 Publication of FR1557390A publication Critical patent/FR1557390A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path
- H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J21/00—Vacuum tubes
- H01J21/02—Tubes with a single discharge path

FR1557390D 1967-03-15 1968-03-13 Expired FR1557390A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH372567A CH470752A (en)	1967-03-15	1967-03-15	Controllable high vacuum electron tube

Publications (1)

Publication Number	Publication Date
FR1557390A true FR1557390A (en)	1969-02-14

Family

ID=4262157

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1557390D Expired FR1557390A (en)	1967-03-15	1968-03-13

Country Status (9)

Country	Link
US (1)	US3562576A (en)
AT (1)	AT276577B (en)
BE (1)	BE712137A (en)
CH (1)	CH470752A (en)
DE (2)	DE1614343A1 (en)
ES (1)	ES351521A1 (en)
FR (1)	FR1557390A (en)
GB (1)	GB1184532A (en)
NL (1)	NL6803532A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3917973A (en) *	1974-07-10	1975-11-04	Varian Associates	Electron tube duplex grid structure
US4011481A (en) *	1975-10-28	1977-03-08	Varian Associates	Modular electron discharge device
US4059784A (en) *	1976-06-14	1977-11-22	Perevodchikov Vladimir Innoken	Electron-beam converter
DE3027756C2 (en) *	1980-07-22	1982-10-28	Siemens AG, 1000 Berlin und 8000 München	Electron tube with a coaxial structure of the cylinder or cylinder jacket-shaped cathode, grid and anode with a device for eliminating disruptive braking field oscillations
DE3050541A1 (en) *	1980-08-27	1982-09-23	Vesesoyuzny Energet I Im	ELECTRON-BEAM TUBE
KR100817485B1 (en) *	2007-08-28	2008-03-31	김선호	Discharge element with discharge control electrode and control circuit thereof
CN110534387B (en) *	2019-09-06	2024-05-17	湖北大学	Ferroelectric ceramic cluster electron emitter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2204306A (en) *	1938-11-10	1940-06-11	Research Corp	Vacuum tube
US2217774A (en) *	1939-05-27	1940-10-15	Bell Telephone Labor Inc	Electron discharge apparatus
FR952893A (en) *	1946-09-11	1949-11-25	Int Standard Electric Corp	Electronic discharge tubes
US2636142A (en) *	1950-06-24	1953-04-21	Rca Corp	Electron discharge device
US2727177A (en) *	1952-02-11	1955-12-13	Westinghouse Electric Corp	Electrostatic lens system
US2705294A (en) *	1952-03-13	1955-03-29	Rca Corp	Electron discharge device
US2844752A (en) *	1956-03-09	1958-07-22	Rca Corp	Electron discharge device

1967
- 1967-03-15 CH CH372567A patent/CH470752A/en not_active IP Right Cessation
- 1967-06-19 DE DE19671614343 patent/DE1614343A1/en active Pending
- 1967-06-19 DE DE6606287U patent/DE6606287U/en not_active Expired
1968
- 1968-01-02 AT AT1968A patent/AT276577B/en active
- 1968-03-12 US US712451A patent/US3562576A/en not_active Expired - Lifetime
- 1968-03-13 FR FR1557390D patent/FR1557390A/fr not_active Expired
- 1968-03-13 NL NL6803532A patent/NL6803532A/xx unknown
- 1968-03-13 BE BE712137D patent/BE712137A/xx unknown
- 1968-03-13 GB GB02282/68A patent/GB1184532A/en not_active Expired
- 1968-03-13 ES ES351521A patent/ES351521A1/en not_active Expired

Also Published As

Publication number	Publication date
AT276577B (en)	1969-11-25
GB1184532A (en)	1970-03-18
DE6606287U (en)	1970-09-10
DE1614343A1 (en)	1970-05-27
NL6803532A (en)	1968-09-16
CH470752A (en)	1969-03-31
ES351521A1 (en)	1969-06-01
US3562576A (en)	1971-02-09
BE712137A (en)	1968-07-15

Publication	Publication Date	Title
AU425114B2 (en)	1972-06-14
AT298283B (en)	1972-03-15
AU416737B2 (en)	1971-09-03
AU2277767A (en)	1968-12-12
AU342066A (en)	1968-09-19
AU610966A (en)	1968-11-28
AU2977667A (en)	1969-05-22
AU2116667A (en)	1969-04-03
AU2256867A (en)	1968-12-05
AU3189468A (en)	1969-07-10
AU2454867A (en)	1969-01-16
AU3151267A (en)	1968-01-08
AU2528767A (en)	1970-01-08
BE426053A (en)
BE514578A (en)
AU25066A (en)	1968-07-11
AU2406369A (en)	1969-01-09
BE711747A (en)	1968-07-15
AU408412B2 (en)	1970-11-23
AU1763766A (en)	1968-08-15
AU1677166A (en)	1968-07-25
AU459699A (en)	1975-04-10
AU1868267A (en)	1968-09-12
BE711719A (en)	1968-07-15
AU97666A (en)	1968-08-01

Legal Events

Date	Code	Title	Description
1977-05-20	ST	Notification of lapse