FR739278A - Improvements to cathode ray tubes - Google Patents

Improvements to cathode ray tubes

Info

Publication number
FR739278A
FR739278A FR739278DA FR739278A FR 739278 A FR739278 A FR 739278A FR 739278D A FR739278D A FR 739278DA FR 739278 A FR739278 A FR 739278A
Authority
FR
France
Prior art keywords
cathode ray
ray tubes
tubes
cathode
ray
Prior art date
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
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR739278A publication Critical patent/FR739278A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
FR739278D 1931-06-30 1932-06-30 Improvements to cathode ray tubes Expired FR739278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US547904A US1988469A (en) 1931-06-30 1931-06-30 Cathode ray apparatus

Publications (1)

Publication Number Publication Date
FR739278A true FR739278A (en) 1933-01-09

Family

ID=24186624

Family Applications (1)

Application Number Title Priority Date Filing Date
FR739278D Expired FR739278A (en) 1931-06-30 1932-06-30 Improvements to cathode ray tubes

Country Status (4)

Country Link
US (1) US1988469A (en)
DE (1) DE673467C (en)
FR (1) FR739278A (en)
GB (1) GB383889A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748013C (en) * 1939-11-08 1944-10-23 Piston for a Branun tube for receiving or sending images
NL93260C (en) * 1951-09-27
NL7510274A (en) * 1975-09-01 1977-03-03 Philips Nv PROCEDURE FOR MANUFACTURE OF A CATHODE NOZZLE TUBE WITH AN INTERNAL CONDUCTIVE COVER, DEVICE FOR PERFORMING THE METHOD AND TUBE OBTAINED ACCORDING TO THIS PROCESS.

Also Published As

Publication number Publication date
US1988469A (en) 1935-01-22
DE673467C (en) 1939-03-25
GB383889A (en) 1932-11-24

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