DE240062C - - Google Patents

Info

Publication number
DE240062C
DE240062C DENDAT240062D DE240062DA DE240062C DE 240062 C DE240062 C DE 240062C DE NDAT240062 D DENDAT240062 D DE NDAT240062D DE 240062D A DE240062D A DE 240062DA DE 240062 C DE240062 C DE 240062C
Authority
DE
Germany
Prior art keywords
frame
writing surface
board
school
full frame
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.)
Active
Application number
DENDAT240062D
Other languages
German (de)
English (en)
Publication of DE240062C publication Critical patent/DE240062C/de
Active legal-status Critical Current

Links

Classifications

    • 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
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/02—Slates

Landscapes

  • Drawing Aids And Blackboards (AREA)
DENDAT240062D Active DE240062C (no)

Publications (1)

Publication Number Publication Date
DE240062C true DE240062C (no)

Family

ID=499454

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT240062D Active DE240062C (no)

Country Status (1)

Country Link
DE (1) DE240062C (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891326A (en) * 1956-01-18 1959-06-23 Fransson Otto Ivar Luminous chartreading and orientation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891326A (en) * 1956-01-18 1959-06-23 Fransson Otto Ivar Luminous chartreading and orientation device

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