DE7013649U - Schreibprojektor. - Google Patents

Schreibprojektor.

Info

Publication number
DE7013649U
DE7013649U DE19707013649 DE7013649U DE7013649U DE 7013649 U DE7013649 U DE 7013649U DE 19707013649 DE19707013649 DE 19707013649 DE 7013649 U DE7013649 U DE 7013649U DE 7013649 U DE7013649 U DE 7013649U
Authority
DE
Germany
Prior art keywords
writing
housing
projector
bearing bracket
brackets
Prior art date
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
DE19707013649
Other languages
German (de)
English (en)
Inventor
Ritzerfeld Gerhard
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
Priority to DE19707013649 priority Critical patent/DE7013649U/de
Publication of DE7013649U publication Critical patent/DE7013649U/de
Priority to CH246771A priority patent/CH513423A/de
Priority to FR7109695A priority patent/FR2083220A5/fr
Priority to DK163271A priority patent/DK125937B/da
Priority to SE474871A priority patent/SE371504B/xx
Expired legal-status Critical Current

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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02Draughting machines or drawing devices for keeping parallelism
    • B43L13/022Draughting machines or drawing devices for keeping parallelism automatic

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drawing Aids And Blackboards (AREA)
DE19707013649 1970-04-09 1970-04-09 Schreibprojektor. Expired DE7013649U (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19707013649 DE7013649U (de) 1970-04-09 1970-04-09 Schreibprojektor.
CH246771A CH513423A (de) 1970-04-09 1971-02-19 Schreibprojektor
FR7109695A FR2083220A5 (https=) 1970-04-09 1971-03-19
DK163271A DK125937B (da) 1970-04-09 1971-04-06 Skriftprojektor med aftagelig filmtransportmekanisme.
SE474871A SE371504B (https=) 1970-04-09 1971-04-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19707013649 DE7013649U (de) 1970-04-09 1970-04-09 Schreibprojektor.

Publications (1)

Publication Number Publication Date
DE7013649U true DE7013649U (de) 1970-08-20

Family

ID=6610881

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19707013649 Expired DE7013649U (de) 1970-04-09 1970-04-09 Schreibprojektor.

Country Status (5)

Country Link
CH (1) CH513423A (https=)
DE (1) DE7013649U (https=)
DK (1) DK125937B (https=)
FR (1) FR2083220A5 (https=)
SE (1) SE371504B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88214C (fi) * 1987-12-30 1993-04-13 Educatek Oy Bildkastare

Also Published As

Publication number Publication date
CH513423A (de) 1971-09-30
DK125937B (da) 1973-05-21
FR2083220A5 (https=) 1971-12-10
SE371504B (https=) 1974-11-18

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