FR679145A - Improvements made to discharge tubes - Google Patents

Improvements made to discharge tubes

Info

Publication number
FR679145A
FR679145A FR679145DA FR679145A FR 679145 A FR679145 A FR 679145A FR 679145D A FR679145D A FR 679145DA FR 679145 A FR679145 A FR 679145A
Authority
FR
France
Prior art keywords
improvements made
discharge tubes
tubes
discharge
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR679145A publication Critical patent/FR679145A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/68—Specified gas introduced into the tube at low pressure, e.g. for reducing or influencing space charge
FR679145D 1928-06-01 1929-05-31 Improvements made to discharge tubes Expired FR679145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US679145XA 1928-06-01 1928-06-01

Publications (1)

Publication Number Publication Date
FR679145A true FR679145A (en) 1930-04-09

Family

ID=22079238

Family Applications (1)

Application Number Title Priority Date Filing Date
FR679145D Expired FR679145A (en) 1928-06-01 1929-05-31 Improvements made to discharge tubes

Country Status (1)

Country Link
FR (1) FR679145A (en)

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