FR476437A - - Google Patents

Info

Publication number
FR476437A
FR476437A FR476437DA FR476437A FR 476437 A FR476437 A FR 476437A FR 476437D A FR476437D A FR 476437DA FR 476437 A FR476437 A FR 476437A
Authority
FR
France
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
Louis-Francois Leray
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.)
LOUIS FRANCOIS LERAY
Original Assignee
LOUIS FRANCOIS LERAY
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 LOUIS FRANCOIS LERAY filed Critical LOUIS FRANCOIS LERAY
Application granted granted Critical
Publication of FR476437A publication Critical patent/FR476437A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/08Projectors or projection-type viewers; Accessories therefor affording epidiascopic projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR476437D 1914-11-04 1914-11-04 Expired FR476437A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR476437T 1914-11-04

Publications (1)

Publication Number Publication Date
FR476437A true FR476437A (xx) 1915-08-03

Family

ID=1514217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR476437D Expired FR476437A (xx) 1914-11-04 1914-11-04

Country Status (1)

Country Link
FR (1) FR476437A (xx)

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