FR970402A - Manufacturing process of discharge tubes - Google Patents

Manufacturing process of discharge tubes

Info

Publication number
FR970402A
FR970402A FR970402DA FR970402A FR 970402 A FR970402 A FR 970402A FR 970402D A FR970402D A FR 970402DA FR 970402 A FR970402 A FR 970402A
Authority
FR
France
Prior art keywords
manufacturing process
discharge tubes
tubes
discharge
manufacturing
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR970402A publication Critical patent/FR970402A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
FR970402D 1947-08-19 1948-08-17 Manufacturing process of discharge tubes Expired FR970402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2558491X 1947-08-19

Publications (1)

Publication Number Publication Date
FR970402A true FR970402A (en) 1951-01-04

Family

ID=19874737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970402D Expired FR970402A (en) 1947-08-19 1948-08-17 Manufacturing process of discharge tubes

Country Status (2)

Country Link
US (1) US2558491A (en)
FR (1) FR970402A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894948A (en) * 1929-10-29 1933-01-24 Siemens Ag Manufacture of electron discharge devices
US1909916A (en) * 1931-05-11 1933-05-16 Ora S Duffendack Electron emitter and method of making same
US2184323A (en) * 1933-06-23 1939-12-26 Hans J Spanner Cathode activation and degassing
US2041802A (en) * 1933-06-30 1936-05-26 Bell Telephone Labor Inc Electron emitter

Also Published As

Publication number Publication date
US2558491A (en) 1951-06-26

Similar Documents

Publication Publication Date Title
CH282727A (en) A method of manufacturing symmetrical dihydroxymethyl-tetramethyl-disiloxane.
FR969208A (en) Tubes and packaging and their manufacturing process
FR967517A (en) Manufacturing process of electron ray tubes
FR985985A (en) Manufacturing process of dimethyl silicon dichloride
FR969160A (en) Manufacturing process of formaldehyde-acetone resins
FR1013690A (en) Process for manufacturing pyridyldialcoylaminoalkane nitriles
FR945866A (en) Manufacturing process of contact masses
FR970402A (en) Manufacturing process of discharge tubes
FR948170A (en) Manufacturing process of thermometers
FR974849A (en) Discharge tube and its manufacturing process
FR951889A (en) Manufacturing process of tubular membranes
FR971077A (en) Manufacturing process of diaryl-butenyl-amines
FR969076A (en) Manufacturing process of electric quartz discharge tubes
FR936339A (en) Manufacturing process of cathodes for discharge tubes
FR1015678A (en) Tube manufacturing process
FR953462A (en) Process for manufacturing shoes and shoes obtained by this process
FR1003118A (en) Manufacturing process of dimethyltolylcarbinol
FR988958A (en) Tube manufacturing process
FR923735A (en) Malt manufacturing process
FR914323A (en) Manufacturing process of p-amino-benzene-sulfamido-2-pyrimidine
FR947541A (en) Process and machine for the manufacture of flexible metal tubes of rectangular section
FR923146A (en) Process for manufacturing tube wrenches and wrenches obtained by this process
FR971451A (en) Process and machine for the manufacture of bergmann type insulating tubes and insulating tubes obtained
FR924877A (en) Manufacturing process of veterinary preparations
FR1005790A (en) Detergent manufacturing process