CH207012A - Process for the manufacture of highly evacuated electrical discharge tubes. - Google Patents

Process for the manufacture of highly evacuated electrical discharge tubes.

Info

Publication number
CH207012A
CH207012A CH207012DA CH207012A CH 207012 A CH207012 A CH 207012A CH 207012D A CH207012D A CH 207012DA CH 207012 A CH207012 A CH 207012A
Authority
CH
Switzerland
Prior art keywords
manufacture
electrical discharge
discharge tubes
highly evacuated
evacuated electrical
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH207012A publication Critical patent/CH207012A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
CH207012D 1937-03-09 1938-03-07 Process for the manufacture of highly evacuated electrical discharge tubes. CH207012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE207012X 1937-03-09

Publications (1)

Publication Number Publication Date
CH207012A true CH207012A (en) 1939-09-15

Family

ID=5793476

Family Applications (1)

Application Number Title Priority Date Filing Date
CH207012D CH207012A (en) 1937-03-09 1938-03-07 Process for the manufacture of highly evacuated electrical discharge tubes.

Country Status (3)

Country Link
CH (1) CH207012A (en)
GB (1) GB496856A (en)
NL (1) NL50729C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540647A (en) * 1945-05-04 1951-02-06 Hartford Nat Bank & Trust Co Method of manufacturing electronic tubes with active getters
NL132102C (en) * 1965-02-25 1900-01-01

Also Published As

Publication number Publication date
NL50729C (en)
GB496856A (en) 1938-12-07

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