GB562024A - Improvements in or relating to portable projection screens - Google Patents

Improvements in or relating to portable projection screens

Info

Publication number
GB562024A
GB562024A GB749644A GB749644A GB562024A GB 562024 A GB562024 A GB 562024A GB 749644 A GB749644 A GB 749644A GB 749644 A GB749644 A GB 749644A GB 562024 A GB562024 A GB 562024A
Authority
GB
United Kingdom
Prior art keywords
projection screens
relating
portable projection
lid
secured
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
GB749644A
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 GB749644A priority Critical patent/GB562024A/en
Publication of GB562024A publication Critical patent/GB562024A/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)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Abstract

562,024. Projection screens. STABLEFORD, J. L. Dec. 2, 1942, No. 7496/44. Divided out of 562,013. [Class 97 (i)] [Also in Group XVII] A box housing a projection screen and having an entirely separable lid, is provided with strap parts 3, 4, respectively secured to the front and back of the box and capable of being buckled together over the lid to hold it in place. A strap loop 7 is secured to the part 3 to provide a carrying handle. Specifications 543,105, 562,013 and 562,023 are referred to.
GB749644A 1942-12-02 1942-12-02 Improvements in or relating to portable projection screens Expired GB562024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB749644A GB562024A (en) 1942-12-02 1942-12-02 Improvements in or relating to portable projection screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB749644A GB562024A (en) 1942-12-02 1942-12-02 Improvements in or relating to portable projection screens

Publications (1)

Publication Number Publication Date
GB562024A true GB562024A (en) 1944-06-14

Family

ID=9834239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB749644A Expired GB562024A (en) 1942-12-02 1942-12-02 Improvements in or relating to portable projection screens

Country Status (1)

Country Link
GB (1) GB562024A (en)

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