FR815084A - Improvements to thermionic discharge tubes - Google Patents

Improvements to thermionic discharge tubes

Info

Publication number
FR815084A
FR815084A FR815084DA FR815084A FR 815084 A FR815084 A FR 815084A FR 815084D A FR815084D A FR 815084DA FR 815084 A FR815084 A FR 815084A
Authority
FR
France
Prior art keywords
discharge tubes
thermionic discharge
thermionic
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 des Lampes
Original Assignee
Compagnie des Lampes
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 des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR815084A publication Critical patent/FR815084A/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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
FR815084D 1935-12-16 1936-12-16 Improvements to thermionic discharge tubes Expired FR815084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54765A US2087743A (en) 1935-12-16 1935-12-16 Electric gaseous discharge device

Publications (1)

Publication Number Publication Date
FR815084A true FR815084A (en) 1937-07-05

Family

ID=21993381

Family Applications (1)

Application Number Title Priority Date Filing Date
FR815084D Expired FR815084A (en) 1935-12-16 1936-12-16 Improvements to thermionic discharge tubes

Country Status (3)

Country Link
US (1) US2087743A (en)
FR (1) FR815084A (en)
GB (1) GB465870A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478969A (en) * 1944-07-19 1949-08-16 Sylvania Electric Prod Electron tube mount stabilizer support
US3885185A (en) * 1974-03-29 1975-05-20 Ralph E Tilley Incandescent lamp

Also Published As

Publication number Publication date
GB465870A (en) 1937-05-18
US2087743A (en) 1937-07-20

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