FR805667A - Improvements to metal screen screens, in particular for cathode ray tubes - Google Patents

Improvements to metal screen screens, in particular for cathode ray tubes

Info

Publication number
FR805667A
FR805667A FR805667DA FR805667A FR 805667 A FR805667 A FR 805667A FR 805667D A FR805667D A FR 805667DA FR 805667 A FR805667 A FR 805667A
Authority
FR
France
Prior art keywords
cathode ray
ray tubes
metal screen
screen screens
screens
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR805667A publication Critical patent/FR805667A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/08—Perforated or foraminous objects, e.g. sieves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
FR805667D 1935-05-23 1936-04-14 Improvements to metal screen screens, in particular for cathode ray tubes Expired FR805667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15103/35A GB458675A (en) 1935-05-23 1935-05-23 Improvements in or relating to metal mesh screens for example for use in cathode ray tubes

Publications (1)

Publication Number Publication Date
FR805667A true FR805667A (en) 1936-11-26

Family

ID=10053091

Family Applications (1)

Application Number Title Priority Date Filing Date
FR805667D Expired FR805667A (en) 1935-05-23 1936-04-14 Improvements to metal screen screens, in particular for cathode ray tubes

Country Status (4)

Country Link
DE (1) DE880678C (en)
FR (1) FR805667A (en)
GB (2) GB458675A (en)
NL (1) NL46342C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184702B (en) * 1957-01-14 1964-12-31 Flueckiger & Cie Process for the production of dials, in particular watch dials
DE1182690B (en) * 1961-05-19 1964-12-03 Siemens Ag Use of an electroforming process for the production of profile grids for color control in color picture tubes
US3476658A (en) * 1965-11-16 1969-11-04 United Aircraft Corp Method of making microcircuit pattern masks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619465C (en) * 1933-05-10 1935-10-01 Telefunken Gmbh Process for the production of perforated electrodes for electrical discharge vessels

Also Published As

Publication number Publication date
NL46342C (en)
GB458736A (en) 1936-12-23
DE880678C (en) 1953-06-22
GB458675A (en) 1936-12-23

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