FR788050A - Sensing material for vacuum tubes - Google Patents

Sensing material for vacuum tubes

Info

Publication number
FR788050A
FR788050A FR788050DA FR788050A FR 788050 A FR788050 A FR 788050A FR 788050D A FR788050D A FR 788050DA FR 788050 A FR788050 A FR 788050A
Authority
FR
France
Prior art keywords
sensing material
vacuum tubes
tubes
vacuum
sensing
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co 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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Application granted granted Critical
Publication of FR788050A publication Critical patent/FR788050A/en
Expired legal-status Critical Current

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)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR788050D 1934-04-12 1935-03-29 Sensing material for vacuum tubes Expired FR788050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1103934A GB436527A (en) 1934-04-12 1934-04-12 Improvements in or relating to the production of highly electro-positive metals within sealed vessels, such for example as thermionic valves

Publications (1)

Publication Number Publication Date
FR788050A true FR788050A (en) 1935-10-02

Family

ID=9978905

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788050D Expired FR788050A (en) 1934-04-12 1935-03-29 Sensing material for vacuum tubes

Country Status (3)

Country Link
BE (1) BE408891A (en)
FR (1) FR788050A (en)
GB (1) GB436527A (en)

Also Published As

Publication number Publication date
BE408891A (en)
GB436527A (en) 1935-10-14

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