BE708496A - - Google Patents

Info

Publication number
BE708496A
BE708496A BE708496DA BE708496A BE 708496 A BE708496 A BE 708496A BE 708496D A BE708496D A BE 708496DA BE 708496 A BE708496 A BE 708496A
Authority
BE
Belgium
Application number
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 BE708496A publication Critical patent/BE708496A/xx

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/22—Processes involving a combination of more than one step according to groups G03G13/02 - G03G13/20
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B3/00—Manually or mechanically operated teaching appliances working with questions and answers
    • G09B3/06—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made
    • G09B3/08—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made of chart form
    • G09B3/085—Manually or mechanically operated teaching appliances working with questions and answers of the multiple-choice answer type, i.e. where a given question is provided with a series of answers and a choice has to be made of chart form with invisibly printed correct answer; the answer being rendered visible by special optical means, e.g. filters; mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Printing Methods (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
BE708496D 1966-12-27 1967-12-22 BE708496A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60474966A 1966-12-27 1966-12-27

Publications (1)

Publication Number Publication Date
BE708496A true BE708496A (enrdf_load_stackoverflow) 1968-06-24

Family

ID=24420871

Family Applications (1)

Application Number Title Priority Date Filing Date
BE708496D BE708496A (enrdf_load_stackoverflow) 1966-12-27 1967-12-22

Country Status (7)

Country Link
JP (1) JPS5236012B1 (enrdf_load_stackoverflow)
BE (1) BE708496A (enrdf_load_stackoverflow)
DE (1) DE1572939A1 (enrdf_load_stackoverflow)
FR (1) FR1548188A (enrdf_load_stackoverflow)
GB (1) GB1214329A (enrdf_load_stackoverflow)
NL (1) NL6717552A (enrdf_load_stackoverflow)
SE (1) SE344127B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1536582A (en) * 1975-01-31 1978-12-20 Shade Inc Method of reusing substrate for image presentation
FR2656713B1 (fr) * 1990-01-03 1992-12-04 Miehe Roger Dispositif pour l'indication de donnees.
US20070281224A1 (en) * 2006-05-31 2007-12-06 Kerry Arthur Kirk Scratch-off document and method for producing same
GB0800716D0 (en) * 2008-01-16 2008-02-20 Drinkwater Kenneth J Novel diffusers, novel methods of manufacture, and novel gas and light barrier structures and applications
US8342576B2 (en) 2010-02-09 2013-01-01 Xerox Corporation Method and system of printing a scratch-off document
US8883390B1 (en) * 2013-04-19 2014-11-11 Eastman Kodak Company Method for creating a scratch-off document

Also Published As

Publication number Publication date
FR1548188A (enrdf_load_stackoverflow) 1968-11-29
GB1214329A (en) 1970-12-02
SE344127B (enrdf_load_stackoverflow) 1972-03-27
NL6717552A (enrdf_load_stackoverflow) 1968-06-28
DE1572939A1 (de) 1970-03-26
JPS5236012B1 (enrdf_load_stackoverflow) 1977-09-13

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