FR734074A - Improvements to electronic discharge devices - Google Patents

Improvements to electronic discharge devices

Info

Publication number: FR734074A
Authority: FR; France
Prior art keywords: discharge devices; electronic discharge; electronic; devices; discharge
Prior art date: 1931-02-11
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.)

Thales SA

Original Assignee

Le Materiel Telephonique Thomson CSF

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.)

1931-02-11

Filing date

1932-01-25

Publication date

1932-10-15

1932-01-25 Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF

1932-10-15 Application granted granted Critical

1932-10-15 Publication of FR734074A publication Critical patent/FR734074A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens

FR734074D 1931-02-11 1932-01-25 Improvements to electronic discharge devices Expired FR734074A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US514931A US1998884A (en)	1931-02-11	1931-02-11	Electric discharge device

Publications (1)

Publication Number	Publication Date
FR734074A true FR734074A (en)	1932-10-15

Family

ID=24049276

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR734074D Expired FR734074A (en)	1931-02-11	1932-01-25	Improvements to electronic discharge devices

Country Status (5)

Country	Link
US (1)	US1998884A (en)
DE (1)	DE668731C (en)
FR (1)	FR734074A (en)
GB (1)	GB392963A (en)
NL (1)	NL36967C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2687471A (en) *	1948-05-01	1954-08-24	Western Union Telegraph Co	Concentrated arc discharge device
US3394280A (en) *	1966-08-01	1968-07-23	Terry M. Trumble	Ultraviolet detector tube having photoemissive cathode and gas filling

0
- NL NL36967D patent/NL36967C/xx active
1931
- 1931-02-11 US US514931A patent/US1998884A/en not_active Expired - Lifetime
- 1931-11-27 GB GB32920/31A patent/GB392963A/en not_active Expired
1932
- 1932-01-25 FR FR734074D patent/FR734074A/en not_active Expired
- 1932-02-12 DE DEI43726D patent/DE668731C/en not_active Expired

Also Published As

Publication number	Publication date
NL36967C (en)
GB392963A (en)	1933-05-29
US1998884A (en)	1935-04-23
DE668731C (en)	1938-12-09

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