DK125937B - Skriftprojektor med aftagelig filmtransportmekanisme. - Google Patents

Skriftprojektor med aftagelig filmtransportmekanisme.

Info

Publication number
DK125937B
DK125937B DK163271A DK163271A DK125937B DK 125937 B DK125937 B DK 125937B DK 163271 A DK163271 A DK 163271A DK 163271 A DK163271 A DK 163271A DK 125937 B DK125937 B DK 125937B
Authority
DK
Denmark
Prior art keywords
font
projector
transport mechanism
film transport
removable film
Prior art date
Application number
DK163271A
Other languages
English (en)
Inventor
G Ritzerfeld
Original Assignee
Ritzerfeld Gerhard
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 Ritzerfeld Gerhard filed Critical Ritzerfeld Gerhard
Publication of DK125937B publication Critical patent/DK125937B/da

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/022—Draughting 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)
DK163271A 1970-04-09 1971-04-06 Skriftprojektor med aftagelig filmtransportmekanisme. DK125937B (da)

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
DK125937B true DK125937B (da) 1973-05-21

Family

ID=6610881

Family Applications (1)

Application Number Title Priority Date Filing Date
DK163271A DK125937B (da) 1970-04-09 1971-04-06 Skriftprojektor med aftagelig filmtransportmekanisme.

Country Status (5)

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

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
SE371504B (da) 1974-11-18
DE7013649U (de) 1970-08-20
FR2083220A5 (da) 1971-12-10

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