FR407741A - Appareil de projections pour publicité, conférences, etc. - Google Patents

Appareil de projections pour publicité, conférences, etc.

Info

Publication number
FR407741A
FR407741A FR407741DA FR407741A FR 407741 A FR407741 A FR 407741A FR 407741D A FR407741D A FR 407741DA FR 407741 A FR407741 A FR 407741A
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
English (en)
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 FR407741A publication Critical patent/FR407741A/fr
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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR407741D 1909-10-09 1909-10-09 Appareil de projections pour publicité, conférences, etc. Expired FR407741A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR407741T 1909-10-09

Publications (1)

Publication Number Publication Date
FR407741A true FR407741A (fr) 1910-03-09

Family

ID=1452020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR407741D Expired FR407741A (fr) 1909-10-09 1909-10-09 Appareil de projections pour publicité, conférences, etc.

Country Status (1)

Country Link
FR (1) FR407741A (fr)

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