FR562770A - Improvements to arc devices - Google Patents

Improvements to arc devices

Info

Publication number
FR562770A
FR562770A FR562770DA FR562770A FR 562770 A FR562770 A FR 562770A FR 562770D A FR562770D A FR 562770DA FR 562770 A FR562770 A FR 562770A
Authority
FR
France
Prior art keywords
arc devices
arc
devices
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 FR562770A publication Critical patent/FR562770A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
FR562770D 1922-03-01 1923-02-28 Improvements to arc devices Expired FR562770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540276A US1608267A (en) 1922-03-01 1922-03-01 Arc device

Publications (1)

Publication Number Publication Date
FR562770A true FR562770A (en) 1923-11-19

Family

ID=10083810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR562770D Expired FR562770A (en) 1922-03-01 1923-02-28 Improvements to arc devices

Country Status (3)

Country Link
US (1) US1608267A (en)
FR (1) FR562770A (en)
GB (1) GB191337A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591721A (en) * 1984-10-10 1986-05-27 Andors Analyzers Incorporated Oxygen analysis employing absorption spectroscopy

Also Published As

Publication number Publication date
US1608267A (en) 1926-11-23
GB191337A (en) 1923-01-11

Similar Documents

Publication Publication Date Title
FR562770A (en) Improvements to arc devices
FR571012A (en) Improvements to arc devices
FR557117A (en) Improvements to rotary mercury switches
FR551979A (en) Improvements to cutting devices
FR29525E (en) Improvements to acoustic devices
FR542381A (en) Improvements to electronic discharge devices
FR602569A (en) Improvements to gas conduction devices
FR553185A (en) Improvements to sharpening devices
FR614697A (en) Improvements to arc devices
FR569581A (en) Improvements to thermionic devices
FR570413A (en) Improvements to thermionic devices
FR541847A (en) Improvements to Arc Lamp Devices
FR574191A (en) Improvements to radio-receiver devices
FR550234A (en) Improvements to terrestrial induction devices
FR571112A (en) Improvements to thermo-ionic devices
FR546783A (en) Improvements to electronic discharge devices
FR565129A (en) Improvements to duplicating devices
FR541427A (en) Improvements to arc lamps
FR553369A (en) Improvements to wrenches
FR27536E (en) Improvements to projection devices
FR560015A (en) Improvements to electrodes
FR546288A (en) Improvements to electromagnetic devices
FR588243A (en) Improvements to electrically controlled devices
FR575420A (en) Improvements to electric shock devices
FR549269A (en) Improvements to electric arc devices