FR2143616A1 - - Google Patents

Info

Publication number
FR2143616A1
FR2143616A1 FR7124755A FR7124755A FR2143616A1 FR 2143616 A1 FR2143616 A1 FR 2143616A1 FR 7124755 A FR7124755 A FR 7124755A FR 7124755 A FR7124755 A FR 7124755A FR 2143616 A1 FR2143616 A1 FR 2143616A1
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.)
Granted
Application number
FR7124755A
Other languages
French (fr)
Other versions
FR2143616B1 (enExample
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.)
PALLISER GEORGES
Original Assignee
PALLISER GEORGES
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 PALLISER GEORGES filed Critical PALLISER GEORGES
Priority to FR7124755A priority Critical patent/FR2143616B1/fr
Publication of FR2143616A1 publication Critical patent/FR2143616A1/fr
Application granted granted Critical
Publication of FR2143616B1 publication Critical patent/FR2143616B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • 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
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR7124755A 1971-06-28 1971-06-28 Expired FR2143616B1 (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7124755A FR2143616B1 (enExample) 1971-06-28 1971-06-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7124755A FR2143616B1 (enExample) 1971-06-28 1971-06-28

Publications (2)

Publication Number Publication Date
FR2143616A1 true FR2143616A1 (enExample) 1973-02-09
FR2143616B1 FR2143616B1 (enExample) 1974-02-15

Family

ID=9079927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7124755A Expired FR2143616B1 (enExample) 1971-06-28 1971-06-28

Country Status (1)

Country Link
FR (1) FR2143616B1 (enExample)

Also Published As

Publication number Publication date
FR2143616B1 (enExample) 1974-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse