FR541427A - Improvements to arc lamps - Google Patents

Improvements to arc lamps

Info

Publication number
FR541427A
FR541427A FR541427DA FR541427A FR 541427 A FR541427 A FR 541427A FR 541427D A FR541427D A FR 541427DA FR 541427 A FR541427 A FR 541427A
Authority
FR
France
Prior art keywords
arc lamps
lamps
arc
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.)
Sperry Gyroscope Co Inc
Original Assignee
Sperry Gyroscope Co Inc
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 Sperry Gyroscope Co Inc filed Critical Sperry Gyroscope Co Inc
Application granted granted Critical
Publication of FR541427A publication Critical patent/FR541427A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/003—Electric arc lamps of a special type
    • H05B31/0036—Electric arc lamps of a special type for projection, copying or stage lighting
FR541427D 1921-09-22 1921-09-22 Improvements to arc lamps Expired FR541427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR541427T 1921-09-22

Publications (1)

Publication Number Publication Date
FR541427A true FR541427A (en) 1922-07-27

Family

ID=8930116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR541427D Expired FR541427A (en) 1921-09-22 1921-09-22 Improvements to arc lamps

Country Status (1)

Country Link
FR (1) FR541427A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480451A (en) * 1983-03-02 1984-11-06 Toshimichi Fujiya Door lock unlockable from indoor side

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480451A (en) * 1983-03-02 1984-11-06 Toshimichi Fujiya Door lock unlockable from indoor side

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