FR455526A - Signal lumineux - Google Patents

Signal lumineux

Info

Publication number
FR455526A
FR455526A FR455526DA FR455526A FR 455526 A FR455526 A FR 455526A FR 455526D A FR455526D A FR 455526DA FR 455526 A FR455526 A FR 455526A
Authority
FR
France
Prior art keywords
light signal
light
signal
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
English (en)
Inventor
Roy Clifford Douglas
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR455526A publication Critical patent/FR455526A/fr
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
    • H05B31/0039—Projectors, the construction of which depends upon the presence of the arc
FR455526D 1913-03-13 1913-03-13 Signal lumineux Expired FR455526A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR455526T 1913-03-13

Publications (1)

Publication Number Publication Date
FR455526A true FR455526A (fr) 1913-08-02

Family

ID=1495395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR455526D Expired FR455526A (fr) 1913-03-13 1913-03-13 Signal lumineux

Country Status (1)

Country Link
FR (1) FR455526A (fr)

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