BE760257A - Porte-information - Google Patents

Porte-information

Info

Publication number
BE760257A
BE760257A BE760257A BE760257A BE760257A BE 760257 A BE760257 A BE 760257A BE 760257 A BE760257 A BE 760257A BE 760257 A BE760257 A BE 760257A BE 760257 A BE760257 A BE 760257A
Authority
BE
Belgium
Prior art keywords
information holder
holder
information
Prior art date
Application number
BE760257A
Other languages
English (en)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of BE760257A publication Critical patent/BE760257A/fr

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Microscoopes, Condenser (AREA)
BE760257A 1969-12-13 1970-12-11 Porte-information BE760257A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6918742A NL6918742A (fr) 1969-12-13 1969-12-13

Publications (1)

Publication Number Publication Date
BE760257A true BE760257A (fr) 1971-06-11

Family

ID=19808621

Family Applications (1)

Application Number Title Priority Date Filing Date
BE760257A BE760257A (fr) 1969-12-13 1970-12-11 Porte-information

Country Status (6)

Country Link
JP (1) JPS4942699B1 (fr)
AU (1) AU2314870A (fr)
BE (1) BE760257A (fr)
DE (1) DE2058214A1 (fr)
FR (1) FR2070845B3 (fr)
NL (1) NL6918742A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5161021A (ja) * 1974-11-26 1976-05-27 Hitachi Plant Eng & Constr Co Haikanruioshomonokoshohehannyu suetsukeruhoho oyobi sonosochi
DE3025927A1 (de) * 1979-09-11 1981-03-26 John S. Milwaukee Wis. Wright Verlaengerungsplatte zur lagerung von transparentbildern fuer einen overheadprojektor
NO166556C (no) * 1988-10-06 1991-08-07 Egil Kaare Hjelmeland Bevegbar stoette for transparenter.
FR2642187B1 (fr) * 1989-01-23 1992-04-17 Monnot Gerard Mallette visionneuse pour documents transparents
US5319400A (en) * 1993-01-06 1994-06-07 Minnesota Mining And Manufacturing Company Light-blocking transparency assembly

Also Published As

Publication number Publication date
DE2058214A1 (de) 1971-06-16
FR2070845A7 (fr) 1971-09-17
JPS4942699B1 (fr) 1974-11-16
AU2314870A (en) 1972-06-15
FR2070845B3 (fr) 1973-08-10
NL6918742A (fr) 1971-06-15

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