FR18425E - Cadre à réflecteur - Google Patents

Cadre à réflecteur

Info

Publication number
FR18425E
FR18425E FR18425A FR18425DA FR18425E FR 18425 E FR18425 E FR 18425E FR 18425 A FR18425 A FR 18425A FR 18425D A FR18425D A FR 18425DA FR 18425 E FR18425 E FR 18425E
Authority
FR
France
Prior art keywords
reflector frame
reflector
frame
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
FR18425A
Other languages
English (en)
Inventor
Pascaline Chesne
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.)
PASCALINE CHESNE
Original Assignee
PASCALINE CHESNE
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 PASCALINE CHESNE filed Critical PASCALINE CHESNE
Application granted granted Critical
Publication of FR18425E publication Critical patent/FR18425E/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR18425A 1912-04-24 1913-11-08 Cadre à réflecteur Expired FR18425E (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR442888T 1912-04-24
FR18425T 1913-11-08

Publications (1)

Publication Number Publication Date
FR18425E true FR18425E (fr) 1914-04-24

Family

ID=1359789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR18425A Expired FR18425E (fr) 1912-04-24 1913-11-08 Cadre à réflecteur

Country Status (1)

Country Link
FR (1) FR18425E (fr)

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