FR520857A - Improvements to electronic discharge devices - Google Patents

Improvements to electronic discharge devices

Info

Publication number
FR520857A
FR520857A FR520857A FR520857DA FR520857A FR 520857 A FR520857 A FR 520857A FR 520857 A FR520857 A FR 520857A FR 520857D A FR520857D A FR 520857DA FR 520857 A FR520857 A FR 520857A
Authority
FR
France
Prior art keywords
discharge devices
electronic discharge
electronic
devices
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
FR520857A
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 FR520857A publication Critical patent/FR520857A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/065—Devices for short wave tubes
FR520857A 1914-03-20 1920-07-22 Improvements to electronic discharge devices Expired FR520857A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US520857XA 1914-03-20 1914-03-20

Publications (1)

Publication Number Publication Date
FR520857A true FR520857A (en) 1921-07-02

Family

ID=21975369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR520857A Expired FR520857A (en) 1914-03-20 1920-07-22 Improvements to electronic discharge devices

Country Status (1)

Country Link
FR (1) FR520857A (en)

Similar Documents

Publication Publication Date Title
FR520857A (en) Improvements to electronic discharge devices
FR514766A (en) Improvements to electronic discharge devices
FR520584A (en) Improvements to electronic discharge devices
FR24434E (en) Improvements to electronic discharge bulbs
FR478602A (en) Arcons refinements
FR470849A (en) Skimmer refinements
FR478673A (en) Garters improvement
FR469156A (en) Improvements to advertising devices
FR478225A (en) Improvements to warning devices
FR483116A (en) Target refinements
FR429095A (en) Metronomes refinements
FR474768A (en) Cremones refinements
FR469408A (en) Fans refinements
FR475917A (en) Improvements to molding devices
FR474817A (en) Watch refinements
CH68414A (en) Display case
FR479270A (en) Bottle refinements
FR471112A (en) Fumivore enhancements
FR475441A (en) Improvements to rock-cutting mechanisms
FR468268A (en) Arc lamp refinements
FR476723A (en) Rangefinder improvements
FR478293A (en) Liquid rheostats improvements
FR468818A (en) Arithmetic slate
FR472165A (en) Improvements to sinks
FR519044A (en) Metallic construction