FR727895A - Lamp extinguishers indicating devices - Google Patents

Lamp extinguishers indicating devices

Info

Publication number
FR727895A
FR727895A FR727895DA FR727895A FR 727895 A FR727895 A FR 727895A FR 727895D A FR727895D A FR 727895DA FR 727895 A FR727895 A FR 727895A
Authority
FR
France
Prior art keywords
indicating devices
extinguishers
lamp
lamp extinguishers
indicating
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp Co
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 Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Application granted granted Critical
Publication of FR727895A publication Critical patent/FR727895A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/70—One or more circuit elements structurally associated with the lamp with built-in short-circuiting device, e.g. for serially connected lamps
FR727895D 1930-12-13 1931-12-05 Lamp extinguishers indicating devices Expired FR727895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US502052A US1972125A (en) 1930-12-13 1930-12-13 Lamp failure indicator

Publications (1)

Publication Number Publication Date
FR727895A true FR727895A (en) 1932-06-25

Family

ID=23996131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727895D Expired FR727895A (en) 1930-12-13 1931-12-05 Lamp extinguishers indicating devices

Country Status (5)

Country Link
US (1) US1972125A (en)
DE (1) DE598892C (en)
FR (1) FR727895A (en)
GB (1) GB377554A (en)
NL (1) NL34648C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447159A (en) * 1944-06-19 1948-08-17 Gen Electric Lamp terminal structure and method of manufacture
US2967976A (en) * 1958-05-13 1961-01-10 Lanata German Daniel Blinking light arrangement
US3179847A (en) * 1960-01-25 1965-04-20 Mott Robert E De Electrical potential indicator

Also Published As

Publication number Publication date
DE598892C (en) 1934-06-20
NL34648C (en)
GB377554A (en) 1932-07-28
US1972125A (en) 1934-09-04

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