FR838507A - Cathode ray devices - Google Patents

Cathode ray devices

Info

Publication number: FR838507A
Authority: FR; France
Prior art keywords: cathode ray; ray devices; devices; cathode; ray
Prior art date: 1937-05-29
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.)

1937-05-29

Filing date

1938-05-27

Publication date

1939-03-08

1938-05-27 Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF

1939-03-08 Application granted granted Critical

1939-03-08 Publication of FR838507A publication Critical patent/FR838507A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/121—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen tubes for oscillography

FR838507D 1937-05-29 1938-05-27 Cathode ray devices Expired FR838507A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US838507XA	1937-05-29	1937-05-29

Publications (1)

Publication Number	Publication Date
FR838507A true FR838507A (en)	1939-03-08

Family

ID=22181097

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR838507D Expired FR838507A (en)	1937-05-29	1938-05-27	Cathode ray devices

Country Status (1)

Country	Link
FR (1)	FR838507A (en)

1938
- 1938-05-27 FR FR838507D patent/FR838507A/en not_active Expired

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