DE117403C - - Google Patents

Info

Publication number
DE117403C
DE117403C DENDAT117403D DE117403DA DE117403C DE 117403 C DE117403 C DE 117403C DE NDAT117403 D DENDAT117403 D DE NDAT117403D DE 117403D A DE117403D A DE 117403DA DE 117403 C DE117403 C DE 117403C
Authority
DE
Germany
Prior art keywords
ruler
vertical
blackboard
lines
board
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
DENDAT117403D
Other languages
German (de)
English (en)
Publication of DE117403C publication Critical patent/DE117403C/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)
DENDAT117403D Active DE117403C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE117403C true DE117403C (enrdf_load_html_response)

Family

ID=386671

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT117403D Active DE117403C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE117403C (enrdf_load_html_response)

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