FR834122A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number: FR834122A
Authority: FR; France
Prior art keywords: electric discharge; discharge tube; tube; electric; discharge
Prior art date: 1937-02-24
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

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Loewe Opta GmbH

Original Assignee

Loewe Opta GmbH

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.)

1937-02-24

Filing date

1938-02-22

Publication date

1938-11-14

1938-02-22 Application filed by Loewe Opta GmbH filed Critical Loewe Opta GmbH

1938-11-14 Application granted granted Critical

1938-11-14 Publication of FR834122A publication Critical patent/FR834122A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/06—Electrode arrangements
- H01J43/18—Electrode arrangements using essentially more than one dynode
- H01J43/22—Dynodes consisting of electron-permeable material, e.g. foil, grid, tube, venetian blind

FR834122D 1937-02-24 1938-02-22 Electric discharge tube Expired FR834122A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE426582X		1937-02-24

Publications (1)

Publication Number	Publication Date
FR834122A true FR834122A (en)	1938-11-14

Family

ID=6547913

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR834122D Expired FR834122A (en)	1937-02-24	1938-02-22	Electric discharge tube

Country Status (5)

Country	Link
US (1)	US2227031A (en)
BE (1)	BE426582A (en)
FR (1)	FR834122A (en)
GB (1)	GB511780A (en)
NL (1)	NL52063C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2478163A (en) *	1944-12-30	1949-08-02	Gen Aniline & Film Corp	Logarithmic photometer
US2585044A (en) *	1945-02-05	1952-02-12	Farnsworth Res Corp	Gain control apparatus
US3130342A (en) *	1947-04-05	1964-04-21	George A Morton	Photoelectric cell
US3234422A (en) *	1957-03-07	1966-02-08	Itt	Collector for barrier grid storage tube

1938
- 1938-02-19 US US191451A patent/US2227031A/en not_active Expired - Lifetime
- 1938-02-22 FR FR834122D patent/FR834122A/en not_active Expired
- 1938-02-22 GB GB5528/38A patent/GB511780A/en not_active Expired
- 1938-02-23 NL NL86580A patent/NL52063C/xx active
- 1938-02-24 BE BE426582D patent/BE426582A/xx unknown

Also Published As

Publication number	Publication date
BE426582A (en)	1938-03-31
NL52063C (en)	1942-03-16
US2227031A (en)	1940-12-31
GB511780A (en)	1939-08-24

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