An apparatus to be used by opticians for testing defective vision / [Sydney Lawrence].

  • Lawrence, Sydney.
Date:
1890
  • Books
  • Online

Available online

view An apparatus to be used by opticians for testing defective vision / [Sydney Lawrence].

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

An apparatus to be used by opticians for testing defective vision / [Sydney Lawrence]. Public Domain Mark. Source: Wellcome Collection.

About this work

Publication/Creation

London : Printed for Her Majesty's Stationery Office by Darling and Son, Ltd, 1890.

Physical description

5 pages, 2 folded leaves of plates : illustrations

Contributors

References note

Patent reference : 1889/8036

Notes

Patent specification
Contains both the provisional and the complete specification

Type/Technique

Languages

Where to find it

  • LocationStatusAccess
    Closed stores
    1889.8036

Permanent link