FR2151374A5 - - Google Patents

Info

Publication number
FR2151374A5
FR2151374A5 FR7230109A FR7230109A FR2151374A5 FR 2151374 A5 FR2151374 A5 FR 2151374A5 FR 7230109 A FR7230109 A FR 7230109A FR 7230109 A FR7230109 A FR 7230109A FR 2151374 A5 FR2151374 A5 FR 2151374A5
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
FR7230109A
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.)
Festo Maschinenfabrik Gottlieb Stoll Firma
Original Assignee
Festo Maschinenfabrik Gottlieb Stoll Firma
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 Festo Maschinenfabrik Gottlieb Stoll Firma filed Critical Festo Maschinenfabrik Gottlieb Stoll Firma
Application granted granted Critical
Publication of FR2151374A5 publication Critical patent/FR2151374A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising 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)
FR7230109A 1971-08-26 1972-08-18 Expired FR2151374A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR2151374A5 true FR2151374A5 (enrdf_load_stackoverflow) 1973-04-13

Family

ID=6623493

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7230109A Expired FR2151374A5 (enrdf_load_stackoverflow) 1971-08-26 1972-08-18

Country Status (3)

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

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
US5371560A (en) * 1991-11-15 1994-12-06 Minnesota Mining And Manufacturing Company Envelope for transparency
US5237355A (en) * 1991-11-15 1993-08-17 Minnesota Mining And Manufacturing Company Envelope for transparency having increased flexibility
WO1996027819A1 (en) * 1995-03-07 1996-09-12 Baldursson Helgi E 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
NL7210114A (enrdf_load_stackoverflow) 1973-02-28
SE382266B (sv) 1976-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse