FR2083285A5 - - Google Patents

Info

Publication number
FR2083285A5
FR2083285A5 FR7111276A FR7111276A FR2083285A5 FR 2083285 A5 FR2083285 A5 FR 2083285A5 FR 7111276 A FR7111276 A FR 7111276A FR 7111276 A FR7111276 A FR 7111276A FR 2083285 A5 FR2083285 A5 FR 2083285A5
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
FR7111276A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR2083285A5 publication Critical patent/FR2083285A5/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drawing Aids And Blackboards (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)
FR7111276A 1970-04-13 1971-03-31 Expired FR2083285A5 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19707013986 DE7013986U (de) 1970-04-13 1970-04-13 Schreibprojektor.

Publications (1)

Publication Number Publication Date
FR2083285A5 true FR2083285A5 (enExample) 1971-12-10

Family

ID=6610935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7111276A Expired FR2083285A5 (enExample) 1970-04-13 1971-03-31

Country Status (4)

Country Link
DE (1) DE7013986U (enExample)
DK (1) DK128134B (enExample)
FR (1) FR2083285A5 (enExample)
GB (1) GB1316704A (enExample)

Also Published As

Publication number Publication date
GB1316704A (en) 1973-05-16
DE7013986U (de) 1970-08-27
DK128134B (da) 1974-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse