NL7210114A - - Google Patents

Info

Publication number
NL7210114A
NL7210114A NL7210114A NL7210114A NL7210114A NL 7210114 A NL7210114 A NL 7210114A NL 7210114 A NL7210114 A NL 7210114A NL 7210114 A NL7210114 A NL 7210114A NL 7210114 A NL7210114 A NL 7210114A
Authority
NL
Netherlands
Application number
NL7210114A
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 NL7210114A publication Critical patent/NL7210114A/xx

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/132Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00Advertising or display means not otherwise provided for
    • G09F19/12Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
NL7210114A 1971-08-26 1972-07-21 NL7210114A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7132640 1971-08-26

Publications (1)

Publication Number Publication Date
NL7210114A true NL7210114A (enrdf_load_html_response) 1973-02-28

Family

ID=6623493

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7210114A NL7210114A (enrdf_load_html_response) 1971-08-26 1972-07-21

Country Status (3)

Country Link
FR (1) FR2151374A5 (enrdf_load_html_response)
NL (1) NL7210114A (enrdf_load_html_response)
SE (1) SE382266B (enrdf_load_html_response)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420775B (sv) 1980-03-13 1981-10-26 Minnesota Mining & Mfg Omslag for bildark till arbetsprojektorer och liknande projektionsapparater
US5266987A (en) * 1991-11-15 1993-11-30 Minnesota Mining And Manufacturing Company Envelope for transparencies
US5237355A (en) * 1991-11-15 1993-08-17 Minnesota Mining And Manufacturing Company Envelope for transparency having increased flexibility
US5371560A (en) * 1991-11-15 1994-12-06 Minnesota Mining And Manufacturing Company Envelope for transparency
AU5118896A (en) * 1995-03-07 1996-09-23 Helgi E. Baldursson Transparent envelope with foldable pocket flap for information display
US6022111A (en) * 1997-12-22 2000-02-08 3M Innovative Properties Company Self-protected imageable presentation transparency assembly

Also Published As

Publication number Publication date
SE382266B (sv) 1976-01-19
FR2151374A5 (enrdf_load_html_response) 1973-04-13

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