GB643399A - An improved portable screen assembly for cinematographic projection - Google Patents

An improved portable screen assembly for cinematographic projection

Info

Publication number
GB643399A
GB643399A GB159648A GB159648A GB643399A GB 643399 A GB643399 A GB 643399A GB 159648 A GB159648 A GB 159648A GB 159648 A GB159648 A GB 159648A GB 643399 A GB643399 A GB 643399A
Authority
GB
United Kingdom
Prior art keywords
screen assembly
improved portable
portable screen
cinematographic projection
cinematographic
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
GB159648A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB159648A priority Critical patent/GB643399A/en
Publication of GB643399A publication Critical patent/GB643399A/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
    • 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)
GB159648A 1948-01-19 1948-01-19 An improved portable screen assembly for cinematographic projection Expired GB643399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB159648A GB643399A (en) 1948-01-19 1948-01-19 An improved portable screen assembly for cinematographic projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB159648A GB643399A (en) 1948-01-19 1948-01-19 An improved portable screen assembly for cinematographic projection

Publications (1)

Publication Number Publication Date
GB643399A true GB643399A (en) 1950-09-20

Family

ID=9724691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB159648A Expired GB643399A (en) 1948-01-19 1948-01-19 An improved portable screen assembly for cinematographic projection

Country Status (1)

Country Link
GB (1) GB643399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112594531A (en) * 2020-12-24 2021-04-02 深圳市维世科技有限公司 Folding screen with automatic tray lifting function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112594531A (en) * 2020-12-24 2021-04-02 深圳市维世科技有限公司 Folding screen with automatic tray lifting function

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