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NO166556C - MOVABLE SUPPORT FOR TRANSPARENCY. - Google Patents

MOVABLE SUPPORT FOR TRANSPARENCY.

Info

Publication number
NO166556C
NO166556C NO884439A NO884439A NO166556C NO 166556 C NO166556 C NO 166556C NO 884439 A NO884439 A NO 884439A NO 884439 A NO884439 A NO 884439A NO 166556 C NO166556 C NO 166556C
Authority
NO
Norway
Prior art keywords
transparency
movable support
movable
support
Prior art date
Application number
NO884439A
Other languages
Norwegian (no)
Other versions
NO166556B (en
NO884439D0 (en
NO884439L (en
Inventor
Egil Kaare Hjelmeland
Original Assignee
Egil Kaare Hjelmeland
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 Egil Kaare Hjelmeland filed Critical Egil Kaare Hjelmeland
Priority to NO884439A priority Critical patent/NO166556C/en
Publication of NO884439D0 publication Critical patent/NO884439D0/en
Priority to PCT/NO1989/000102 priority patent/WO1990004208A1/en
Priority to EP89910944A priority patent/EP0447403A1/en
Publication of NO884439L publication Critical patent/NO884439L/en
Publication of NO166556B publication Critical patent/NO166556B/en
Publication of NO166556C publication Critical patent/NO166556C/en

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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • 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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Window Of Vehicle (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
NO884439A 1988-10-06 1988-10-06 MOVABLE SUPPORT FOR TRANSPARENCY. NO166556C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO884439A NO166556C (en) 1988-10-06 1988-10-06 MOVABLE SUPPORT FOR TRANSPARENCY.
PCT/NO1989/000102 WO1990004208A1 (en) 1988-10-06 1989-10-04 Movable support for transparencies
EP89910944A EP0447403A1 (en) 1988-10-06 1989-10-04 Movable support for transparencies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO884439A NO166556C (en) 1988-10-06 1988-10-06 MOVABLE SUPPORT FOR TRANSPARENCY.

Publications (4)

Publication Number Publication Date
NO884439D0 NO884439D0 (en) 1988-10-06
NO884439L NO884439L (en) 1990-04-09
NO166556B NO166556B (en) 1991-04-29
NO166556C true NO166556C (en) 1991-08-07

Family

ID=19891301

Family Applications (1)

Application Number Title Priority Date Filing Date
NO884439A NO166556C (en) 1988-10-06 1988-10-06 MOVABLE SUPPORT FOR TRANSPARENCY.

Country Status (3)

Country Link
EP (1) EP0447403A1 (en)
NO (1) NO166556C (en)
WO (1) WO1990004208A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537792A (en) * 1969-03-28 1970-11-03 Milprint Inc Transparency projection system
NL6918742A (en) * 1969-12-13 1971-06-15
US4498746A (en) * 1979-09-11 1985-02-12 Wright John S Extension platform to support transparencies for an overhead projector
DE3401556C2 (en) * 1984-01-18 1987-04-16 Dieter 8722 Bergrheinfeld Vogt Overhead lecture frame

Also Published As

Publication number Publication date
EP0447403A1 (en) 1991-09-25
NO166556B (en) 1991-04-29
NO884439D0 (en) 1988-10-06
NO884439L (en) 1990-04-09
WO1990004208A1 (en) 1990-04-19

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