FR12454E - Projection device for advertising, conferences, etc. - Google Patents

Projection device for advertising, conferences, etc.

Info

Publication number
FR12454E
FR12454E FR12454DA FR12454E FR 12454 E FR12454 E FR 12454E FR 12454D A FR12454D A FR 12454DA FR 12454 E FR12454 E FR 12454E
Authority
FR
France
Prior art keywords
conferences
advertising
projection device
projection
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
Eugene-Pierre-Felix-Auguste Coursin
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.)
EUGENE PIERRE FELIX AUGUSTE CO
Original Assignee
EUGENE PIERRE FELIX AUGUSTE 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 EUGENE PIERRE FELIX AUGUSTE CO filed Critical EUGENE PIERRE FELIX AUGUSTE CO
Application granted granted Critical
Publication of FR12454E publication Critical patent/FR12454E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR12454D 1909-10-09 1910-02-28 Projection device for advertising, conferences, etc. Expired FR12454E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR407741T 1909-10-09
FR12454T 1910-02-28

Publications (1)

Publication Number Publication Date
FR12454E true FR12454E (en) 1910-09-23

Family

ID=1354646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR12454D Expired FR12454E (en) 1909-10-09 1910-02-28 Projection device for advertising, conferences, etc.

Country Status (1)

Country Link
FR (1) FR12454E (en)

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