FR2084649A5 - - Google Patents

Info

Publication number
FR2084649A5
FR2084649A5 FR7109048A FR7109048A FR2084649A5 FR 2084649 A5 FR2084649 A5 FR 2084649A5 FR 7109048 A FR7109048 A FR 7109048A FR 7109048 A FR7109048 A FR 7109048A FR 2084649 A5 FR2084649 A5 FR 2084649A5
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7109048A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AB Dick Co
Original Assignee
AB Dick Co
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 AB Dick Co filed Critical AB Dick Co
Application granted granted Critical
Publication of FR2084649A5 publication Critical patent/FR2084649A5/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/001—Printing processes to produce particular kinds of printed work, e.g. patterns using chemical colour-formers or chemical reactions, e.g. leuco dyes or acids
    • 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

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
FR7109048A 1970-03-16 1971-03-16 Expired FR2084649A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1995570A 1970-03-16 1970-03-16

Publications (1)

Publication Number Publication Date
FR2084649A5 true FR2084649A5 (en) 1971-12-17

Family

ID=21795979

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7109048A Expired FR2084649A5 (en) 1970-03-16 1971-03-16

Country Status (6)

Country Link
BE (1) BE764350A (en)
CA (1) CA940301A (en)
DE (1) DE2112380A1 (en)
FR (1) FR2084649A5 (en)
GB (1) GB1350930A (en)
NL (1) NL7103180A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022760A1 (en) * 1979-02-16 1981-01-21 Amplikart S.P.R.L. Self corrector for multiple-choice questionnaire
EP2199094A1 (en) 2008-12-22 2010-06-23 Mondi Uncoated Fine & Kraft Paper GmbH Method for chromophoric illustration of surfaces
WO2010072388A2 (en) 2008-12-22 2010-07-01 Mondi Uncoated Fine & Kraft Paper Gmbh Method for the colour-imparting inscribing of surfaces
EP2264110A1 (en) 2009-06-17 2010-12-22 Mondi Uncoated Fine & Kraft Paper GmbH Reactive ink for chromophoric illustration of surfaces
EP2325018A1 (en) 2009-11-24 2011-05-25 Mondi Uncoated Fine & Kraft Paper GmbH Thermally sensitive recording material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272106A (en) 1979-10-10 1981-06-09 Minnesota Mining And Manufacturing Company Copy sheet
US5310627A (en) * 1992-12-15 1994-05-10 Minnesota Mining And Manufacturing Company Changing the color of yellow resist images by application of pH-sensitive dyes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022760A1 (en) * 1979-02-16 1981-01-21 Amplikart S.P.R.L. Self corrector for multiple-choice questionnaire
EP2199094A1 (en) 2008-12-22 2010-06-23 Mondi Uncoated Fine & Kraft Paper GmbH Method for chromophoric illustration of surfaces
WO2010072388A2 (en) 2008-12-22 2010-07-01 Mondi Uncoated Fine & Kraft Paper Gmbh Method for the colour-imparting inscribing of surfaces
EP2264110A1 (en) 2009-06-17 2010-12-22 Mondi Uncoated Fine & Kraft Paper GmbH Reactive ink for chromophoric illustration of surfaces
EP2325018A1 (en) 2009-11-24 2011-05-25 Mondi Uncoated Fine & Kraft Paper GmbH Thermally sensitive recording material
WO2011063919A1 (en) 2009-11-24 2011-06-03 Mondi Uncoated Fine & Kraft Paper Gmbh Thermally sensitive recording material

Also Published As

Publication number Publication date
GB1350930A (en) 1974-04-24
BE764350A (en) 1971-08-16
NL7103180A (en) 1971-09-20
DE2112380A1 (en) 1971-10-07
CA940301A (en) 1974-01-22

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Legal Events

Date Code Title Description
ST Notification of lapse