Specification of Julius Jeffreys : respirators.

  • Jeffreys, Julius, 1800-1877.
Date:
1857
  • Books
  • Online

Available online

view Specification of Julius Jeffreys : respirators.

Public Domain Mark

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

Credit

Specification of Julius Jeffreys : respirators. Public Domain Mark. Source: Wellcome Collection.

About this work

Description

Patent for improvements to his previous design for a respirator.

Publication/Creation

London : Great Seal Patent Office, 1857 (London : George E. Eyre and William Spottiswoode)

Physical description

5 pages, 1 folded leaf of plates : illustrations ; 28 cm

Contributors

Notes

At head of title: A.D. 1844. No. 10.287.
"Julius Jeffreys, of Clapham, in the county of Surrey, gentleman".

Type/Technique

Languages

Subjects

Where to find it

  • LocationStatusAccess
    Closed stores
    Pat. vol. 19
  • Location Access
    Closed stores
    Pat. vol. 19:17

    Note

Permanent link