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 (en:Method)

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 (en:Method) 1970-02-02

Family

ID=25008671

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6911560A NL6911560A (en:Method) 1968-07-29 1969-07-29

Country Status (8)

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

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

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