FR900931A - Manufacturing process of resistance elements - Google Patents

Manufacturing process of resistance elements

Info

Publication number
FR900931A
FR900931A FR900931DA FR900931A FR 900931 A FR900931 A FR 900931A FR 900931D A FR900931D A FR 900931DA FR 900931 A FR900931 A FR 900931A
Authority
FR
France
Prior art keywords
manufacturing process
resistance elements
resistance
elements
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 FR900931A publication Critical patent/FR900931A/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
    • H01J9/08—Manufacture of heaters for indirectly-heated cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR900931D 1942-11-28 1944-01-03 Manufacturing process of resistance elements Expired FR900931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL241761X 1942-11-28

Publications (1)

Publication Number Publication Date
FR900931A true FR900931A (en) 1945-07-12

Family

ID=19780592

Family Applications (1)

Application Number Title Priority Date Filing Date
FR900931D Expired FR900931A (en) 1942-11-28 1944-01-03 Manufacturing process of resistance elements

Country Status (3)

Country Link
BE (1) BE453364A (en)
CH (1) CH241761A (en)
FR (1) FR900931A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082332B (en) * 1955-01-22 1960-05-25 Siemens Ag Process for the production of resistance layers with surface resistance running according to a predetermined function

Also Published As

Publication number Publication date
BE453364A (en)
CH241761A (en) 1946-03-31

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