DK132420B - Kopiark omfattende et synligt billede repræsenterende instruktioner, spørgsmål eller udsagn og markeringsområder beregnet til at blive afkrydset svarende til det svar, der udvælges. - Google Patents
Kopiark omfattende et synligt billede repræsenterende instruktioner, spørgsmål eller udsagn og markeringsområder beregnet til at blive afkrydset svarende til det svar, der udvælges.Info
- Publication number
- DK132420B DK132420B DK425767AA DK425767A DK132420B DK 132420 B DK132420 B DK 132420B DK 425767A A DK425767A A DK 425767AA DK 425767 A DK425767 A DK 425767A DK 132420 B DK132420 B DK 132420B
- Authority
- DK
- Denmark
- Prior art keywords
- ticked
- questions
- statements
- visible image
- image representing
- Prior art date
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/0253—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using a chemical colour-forming ink, e.g. chemical hectography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/04—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using solvent-soluble dyestuffs on the master sheets, e.g. alcohol-soluble
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Color Printing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK330272A DK135414B (da) | 1966-08-24 | 1972-07-03 | Middel til fremstilling af med latente billeder forsynede kopiark til anvendelse ved karaktergivning og selvoverhøring. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57474366A | 1966-08-24 | 1966-08-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK132420B true DK132420B (da) | 1975-12-01 |
DK132420C DK132420C (da) | 1976-05-03 |
Family
ID=24297438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK425767A DK132420C (da) | 1966-08-24 | 1967-08-23 | Kopiark omfattende et synligt billede representerende instruktioner sporgsmal eller udsagn og markeringsomrader beregnet til at blive afkrydset svarende til det svar der udvelges |
Country Status (6)
Country | Link |
---|---|
US (1) | US3451143A (da) |
BE (1) | BE703000A (da) |
DE (1) | DE1671532C3 (da) |
DK (1) | DK132420C (da) |
GB (1) | GB1138779A (da) |
NL (1) | NL6711319A (da) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4051283A (en) * | 1968-09-03 | 1977-09-27 | A. B. Dick Company | Printed sheets containing concealed images and method and materials for preparation and visual development of same |
US3632364A (en) * | 1968-09-03 | 1972-01-04 | Dick Co Ab | Printed sheets containing concealed images and method & materials for preparation and visual development of same |
US3617324A (en) * | 1968-10-17 | 1971-11-02 | Dick Co Ab | Method for forming a concealed image by sublimination |
US3920863A (en) * | 1969-05-06 | 1975-11-18 | Minnesota Mining & Mfg | Method of providing and developing hidden entries |
US3731404A (en) * | 1971-04-19 | 1973-05-08 | A Masterson | Testing form and system |
US3850649A (en) * | 1971-08-05 | 1974-11-26 | Minnesota Mining & Mfg | Latent image printing |
CA973655A (en) * | 1971-12-13 | 1975-09-02 | Minnesota Mining And Manufacturing Company | Moldable imaging composition |
US3979550A (en) * | 1974-01-18 | 1976-09-07 | The Mazer Corporation | Pre-printed latent image spirit duplicating masters |
US4111462A (en) * | 1975-07-15 | 1978-09-05 | Minnesota Mining And Manufacturing Company | Latent, sensitizing ink |
US4205865A (en) * | 1975-07-15 | 1980-06-03 | Minnesota Mining And Manufacturing Company | Latent sensitizing ink |
US4198445A (en) * | 1975-09-24 | 1980-04-15 | The Gillette Company | Latent image printing and development |
US4188431A (en) * | 1975-09-24 | 1980-02-12 | The Gillette Company | Latent image printing and development |
US4038761A (en) * | 1976-02-17 | 1977-08-02 | A. B. Dick Company | Element and method for teaching with liquid crystals |
US4084332A (en) * | 1977-03-07 | 1978-04-18 | Waloszyk John S | System for visual communication |
US4337051A (en) * | 1980-10-14 | 1982-06-29 | Thomas Donlon | Self-scoring test with non-disclosed key |
US4514177A (en) * | 1984-01-23 | 1985-04-30 | Stry-Lenkoff Co. | Invisible ink quiz game |
GB2170036A (en) * | 1985-01-21 | 1986-07-23 | Robin Roy Richards | Question and answer teaching aid |
US4631203A (en) * | 1985-04-08 | 1986-12-23 | Rolf Schaefer | Latent imaging and developer system |
US4784876A (en) * | 1986-12-31 | 1988-11-15 | Lynwood Graphics, Inc. | Sympathetic ink and developer system |
US4787852A (en) * | 1987-04-24 | 1988-11-29 | Melnick David W | Multicolor interactive notepad |
US4917643A (en) * | 1987-06-26 | 1990-04-17 | Mattel, Inc. | Toy vehicle with thermochromic material |
US5503583B1 (en) * | 1987-06-26 | 2000-09-05 | Mattel Inc | Toy with thermochromic material |
US5084434A (en) * | 1988-10-03 | 1992-01-28 | A.B. Dick Company | Ink and method for the development of concealed iamges |
DE69020402T2 (de) * | 1989-03-14 | 1995-11-23 | Wiggins Teape Group Ltd | Zusammensetzung zum Beglaubigen eines Sicherheitspapiers. |
US5087283A (en) * | 1990-01-02 | 1992-02-11 | Dixon Marvin P | Sympathetic ink for ink jet printer |
US5372387A (en) * | 1992-12-15 | 1994-12-13 | Wajda; Tadeusz | Security device for document protection |
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 |
US5431452A (en) * | 1993-08-23 | 1995-07-11 | Wallace Computer Services, Inc. | Hidden entry system and image-developing device therefor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1866545A (en) * | 1929-06-26 | 1932-07-12 | Jacob G Cohen | Game device |
US2386872A (en) * | 1941-07-02 | 1945-10-16 | Gen Manifold & Printing Co | Duplicating pad or sales book |
US2936707A (en) * | 1951-06-22 | 1960-05-17 | Ditto Inc | Color reaction type duplication process |
US2618866A (en) * | 1951-08-31 | 1952-11-25 | Ncr Co | Educational device |
US3076406A (en) * | 1954-09-28 | 1963-02-05 | Dick Co Ab | Duplicating method and element for use therein |
US3363336A (en) * | 1965-12-10 | 1968-01-16 | Meredith Publishing Company | Method and devices for teaching writing skills |
-
1966
- 1966-08-24 US US574743A patent/US3451143A/en not_active Expired - Lifetime
-
1967
- 1967-08-17 NL NL6711319A patent/NL6711319A/xx unknown
- 1967-08-23 BE BE703000D patent/BE703000A/xx unknown
- 1967-08-23 DK DK425767A patent/DK132420C/da active
- 1967-08-23 GB GB38913/67A patent/GB1138779A/en not_active Expired
- 1967-08-24 DE DE1671532A patent/DE1671532C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3451143A (en) | 1969-06-24 |
DE1671532A1 (de) | 1971-09-23 |
DE1671532B2 (da) | 1975-03-06 |
GB1138779A (en) | 1969-01-01 |
NL6711319A (da) | 1968-02-26 |
BE703000A (da) | 1968-01-15 |
DE1671532C3 (de) | 1975-10-16 |
DK132420C (da) | 1976-05-03 |
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