FR720394A - Tube électronique - Google Patents

Tube électronique

Info

Publication number
FR720394A
FR720394A FR720394DA FR720394A FR 720394 A FR720394 A FR 720394A FR 720394D A FR720394D A FR 720394DA FR 720394 A FR720394 A FR 720394A
Authority
FR
France
Prior art keywords
electron tube
electron
tube
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
English (en)
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.)
RADIOWERK E SCHRACK AKTIEN GES
Original Assignee
RADIOWERK E SCHRACK AKTIEN GES
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 RADIOWERK E SCHRACK AKTIEN GES filed Critical RADIOWERK E SCHRACK AKTIEN GES
Application granted granted Critical
Publication of FR720394A publication Critical patent/FR720394A/fr
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
    • H01J7/186—Getter supports
FR720394D 1930-09-30 1931-07-22 Tube électronique Expired FR720394A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT720394X 1930-09-30
GB30584/30A GB362086A (en) 1930-09-30 1930-10-13 Improvements in or relating to electron tubes

Publications (1)

Publication Number Publication Date
FR720394A true FR720394A (fr) 1932-02-24

Family

ID=10309925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720394D Expired FR720394A (fr) 1930-09-30 1931-07-22 Tube électronique

Country Status (2)

Country Link
FR (1) FR720394A (fr)
GB (1) GB362086A (fr)

Also Published As

Publication number Publication date
GB362086A (en) 1931-12-03

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