FR498816A - Improvements to electric arc lamps - Google Patents

Improvements to electric arc lamps

Info

Publication number
FR498816A
FR498816A FR498816DA FR498816A FR 498816 A FR498816 A FR 498816A FR 498816D A FR498816D A FR 498816DA FR 498816 A FR498816 A FR 498816A
Authority
FR
France
Prior art keywords
electric arc
arc lamps
lamps
electric
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)
Inventor
Haydn Thies Harrison
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 FR498816A publication Critical patent/FR498816A/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
    • H05B31/0039—Projectors, the construction of which depends upon the presence of the arc
FR498816D 1917-01-08 1917-01-08 Improvements to electric arc lamps Expired FR498816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR498816T 1917-01-08

Publications (1)

Publication Number Publication Date
FR498816A true FR498816A (en) 1920-01-23

Family

ID=1533969

Family Applications (1)

Application Number Title Priority Date Filing Date
FR498816D Expired FR498816A (en) 1917-01-08 1917-01-08 Improvements to electric arc lamps

Country Status (1)

Country Link
FR (1) FR498816A (en)

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