BE743149A - - Google Patents

Info

Publication number
BE743149A
BE743149A BE743149DA BE743149A BE 743149 A BE743149 A BE 743149A BE 743149D A BE743149D A BE 743149DA BE 743149 A BE743149 A BE 743149A
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 BE743149A publication Critical patent/BE743149A/xx

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • 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
    • 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
    • G03G13/04—Exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Printing Methods (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
BE743149D 1969-02-12 1969-12-15 BE743149A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79874869A 1969-02-12 1969-02-12

Publications (1)

Publication Number Publication Date
BE743149A true BE743149A (xx) 1970-05-14

Family

ID=25174164

Family Applications (1)

Application Number Title Priority Date Filing Date
BE743149D BE743149A (xx) 1969-02-12 1969-12-15

Country Status (6)

Country Link
US (1) US3603681A (xx)
BE (1) BE743149A (xx)
DE (1) DE2004868A1 (xx)
FR (1) FR2033955A5 (xx)
GB (1) GB1268130A (xx)
SE (1) SE358486B (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852088A (en) * 1972-03-20 1974-12-03 Ibm Security document system and method
US3807852A (en) * 1973-01-15 1974-04-30 Unitax Inc Forms which are intended to be reproduced on a copying machine
US3995887A (en) * 1975-04-07 1976-12-07 E. D. Bullard Company Method and system for control of multiple inventories
US4227719A (en) * 1978-09-20 1980-10-14 Burroughs Corporation Protection system for documents
FR2503890A1 (fr) * 1979-09-17 1982-10-15 Auken John Van Systeme anti-copie a plusieurs couleurs pour des machines de copie xerographiques et electrostatiques
US20050142468A1 (en) * 2003-12-24 2005-06-30 Eastman Kodak Company Printing system, process, and product with a variable pantograph

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1216695A (en) * 1915-02-02 1917-02-20 Robert John Method of taking moving pictures.

Also Published As

Publication number Publication date
FR2033955A5 (xx) 1970-12-04
DE2004868A1 (de) 1970-09-24
GB1268130A (en) 1972-03-22
SE358486B (xx) 1973-07-30
US3603681A (en) 1971-09-07

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