NL6911560A - - Google Patents

Info

Publication number
NL6911560A
NL6911560A NL6911560A NL6911560A NL6911560A NL 6911560 A NL6911560 A NL 6911560A NL 6911560 A NL6911560 A NL 6911560A NL 6911560 A NL6911560 A NL 6911560A NL 6911560 A NL6911560 A NL 6911560A
Authority
NL
Netherlands
Application number
NL6911560A
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 filed Critical
Publication of NL6911560A publication Critical patent/NL6911560A/xx

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S353/00—Optics: image projectors
    • Y10S353/05—Transparency holder accessories

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)
NL6911560A 1968-07-29 1969-07-29 NL6911560A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74825568A 1968-07-29 1968-07-29

Publications (1)

Publication Number Publication Date
NL6911560A true NL6911560A (xx) 1970-02-02

Family

ID=25008671

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6911560A NL6911560A (xx) 1968-07-29 1969-07-29

Country Status (8)

Country Link
US (1) US3524703A (xx)
DE (1) DE1915518A1 (xx)
DK (1) DK127349B (xx)
ES (1) ES369963A1 (xx)
FR (1) FR2013881A1 (xx)
GB (2) GB1232181A (xx)
IE (1) IE33436B1 (xx)
NL (1) NL6911560A (xx)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709590A (en) * 1970-09-14 1973-01-09 A Bisberg Folder for overhead projector
US3895453A (en) * 1970-10-02 1975-07-22 John S Wright Accessory storage and projection apparatus for visual communications
SE346166B (xx) * 1970-10-06 1972-06-26 Almqvist & Wiksell Foerlag Ab
US3811212A (en) * 1972-01-31 1974-05-21 J Wright Transparency display devices
US3717870A (en) * 1972-02-14 1973-02-20 Litton Systems Inc Card directory
US3935583A (en) * 1974-03-22 1976-01-27 Spence Bate Apparatus for making microfiches
US4203659A (en) * 1978-06-12 1980-05-20 Instructo/Mcgraw-Hill, Inc. Transparency storage and display apparatus
CA1125066A (en) * 1979-09-11 1982-06-08 John S. Wright Extension platform to support transparencies for an overhead projector
SE420775B (sv) * 1980-03-13 1981-10-26 Minnesota Mining & Mfg Omslag for bildark till arbetsprojektorer och liknande projektionsapparater
DK230782A (da) * 1982-05-21 1983-11-22 Bjarne Mueller Nielsen Beskyttelsesindretning til transparenter
GB2156096B (en) * 1984-03-16 1987-05-28 Wilfred Levin Accessory for use with an overhead projector
SE439999B (sv) * 1984-07-23 1985-07-08 Nord Ab Ingfirma Forfarande for presentation av information pa ett flertal arkformiga informationsberare samt anordning for genomforande av forfarandet
US4707092A (en) * 1985-04-24 1987-11-17 D. O. Industries, Inc. Transparency transport system for overhead projector
US4732468A (en) * 1986-07-01 1988-03-22 Wright John S Registry device for transparencies for overhead projector
US4906091A (en) * 1987-09-02 1990-03-06 Slidex Corporation Glass stage and an overhead type projector system
US5371560A (en) * 1991-11-15 1994-12-06 Minnesota Mining And Manufacturing Company Envelope for transparency
US5237355A (en) * 1991-11-15 1993-08-17 Minnesota Mining And Manufacturing Company Envelope for transparency having increased flexibility
US5266987A (en) * 1991-11-15 1993-11-30 Minnesota Mining And Manufacturing Company Envelope for transparencies
US5475453A (en) * 1994-08-08 1995-12-12 Maccarthy; Patrick Manually-operated tray assembly for dispensing and receiving overhead projector transparencies
GB2299178A (en) * 1995-03-21 1996-09-25 Ian Richard Ladd Overhead projector transparency transport system
US6022111A (en) * 1997-12-22 2000-02-08 3M Innovative Properties Company Self-protected imageable presentation transparency assembly
US7106014B1 (en) * 2003-04-07 2006-09-12 Krueger International, Inc. Lectern
WO2010007625A1 (en) * 2008-07-16 2010-01-21 Bruce Gotfried Illumination of reading material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB531904A (en) * 1939-07-11 1941-01-14 Standard Telephones Cables Ltd Improvements in or relating to electron discharge devices
US2962825A (en) * 1959-06-09 1960-12-06 Gen Aniline & Film Corp Portable viewing device
US3253358A (en) * 1963-07-17 1966-05-31 John S Wright Visual teaching system
US3269261A (en) * 1963-09-30 1966-08-30 Porter & Co Inc Registration method and frame
US3264767A (en) * 1964-01-29 1966-08-09 Tecnifax Corp Pin registration system of producing slide transparencies for overhead projection

Also Published As

Publication number Publication date
FR2013881A1 (xx) 1970-04-10
GB1244776A (en) 1971-09-02
IE33436L (en) 1970-01-29
GB1232181A (xx) 1971-05-19
DE1915518A1 (de) 1970-07-16
IE33436B1 (en) 1974-06-26
ES369963A1 (es) 1972-01-01
US3524703A (en) 1970-08-18
DK127349B (da) 1973-10-22

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