FR47312E - Improvements to discharge devices - Google Patents

Improvements to discharge devices

Info

Publication number
FR47312E
FR47312E FR47312DA FR47312E FR 47312 E FR47312 E FR 47312E FR 47312D A FR47312D A FR 47312DA FR 47312 E FR47312 E FR 47312E
Authority
FR
France
Prior art keywords
discharge devices
discharge
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 FR47312E publication Critical patent/FR47312E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
FR47312D 1935-05-04 1936-05-04 Improvements to discharge devices Expired FR47312E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19867A US2091915A (en) 1935-05-04 1935-05-04 Electric discharge device

Publications (1)

Publication Number Publication Date
FR47312E true FR47312E (en) 1937-03-16

Family

ID=21795464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR47312D Expired FR47312E (en) 1935-05-04 1936-05-04 Improvements to discharge devices

Country Status (3)

Country Link
US (1) US2091915A (en)
FR (1) FR47312E (en)
GB (1) GB455591A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499197A (en) * 1948-11-24 1950-02-28 Gen Electric Metal envelope electric discharge device
US6528953B1 (en) * 2001-09-25 2003-03-04 Osram Sylvania Inc. Amalgam retainer

Also Published As

Publication number Publication date
GB455591A (en) 1936-10-23
US2091915A (en) 1937-08-31

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