FR421167A - Improvements in electric projectors - Google Patents

Improvements in electric projectors

Info

Publication number
FR421167A
FR421167A FR421167DA FR421167A FR 421167 A FR421167 A FR 421167A FR 421167D A FR421167D A FR 421167DA FR 421167 A FR421167 A FR 421167A
Authority
FR
France
Prior art keywords
projectors
electric
electric projectors
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
Luigi Pasqualini
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 FR421167A publication Critical patent/FR421167A/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
FR421167D 1910-10-07 1910-10-07 Improvements in electric projectors Expired FR421167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR421167T 1910-10-07

Publications (1)

Publication Number Publication Date
FR421167A true FR421167A (en) 1911-02-16

Family

ID=1464242

Family Applications (1)

Application Number Title Priority Date Filing Date
FR421167D Expired FR421167A (en) 1910-10-07 1910-10-07 Improvements in electric projectors

Country Status (1)

Country Link
FR (1) FR421167A (en)

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