Improved means in producing raised characters in the "Braille" system of writing and reading for the blind / [Sarah Ann Thompson].

  • Thompson, Sarah Ann.
Date:
1899
  • Books
  • Online

About this work

Publication/Creation

Redhill : Printed for Her Majesty's Stationery Office by Malcomson & Co., Ltd, 1899.

Physical description

3 pages, 1 folded leaf of plates : illustrations

Contributors

References note

Patent reference : 1898/11720

Notes

Patent specification
Contains both the provisional and the complete specification

Type/Technique

Languages

Where to find it

  • LocationStatusAccess
    Closed stores
    1898.11720

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