DE171892C - - Google Patents

Info

Publication number
DE171892C
DE171892C DENDAT171892D DE171892DA DE171892C DE 171892 C DE171892 C DE 171892C DE NDAT171892 D DENDAT171892 D DE NDAT171892D DE 171892D A DE171892D A DE 171892DA DE 171892 C DE171892 C DE 171892C
Authority
DE
Germany
Prior art keywords
ring
back support
correct
student
straight
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
DENDAT171892D
Other languages
German (de)
English (en)
Publication of DE171892C publication Critical patent/DE171892C/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
    • B43L15/00—Supports for attachment to hands or arms for facilitating writing or drawing

Landscapes

  • Orthopedics, Nursing, And Contraception (AREA)
DENDAT171892D Active DE171892C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE171892C true DE171892C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=436827

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT171892D Active DE171892C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE171892C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617919A (en) * 1983-09-06 1986-10-21 Theradyne Corporation Wheelchair with posture supports

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617919A (en) * 1983-09-06 1986-10-21 Theradyne Corporation Wheelchair with posture supports

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