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Improved apparatus to facilitate breathing in dust-laden or vitiated atmospheres

Witzenmann, Emil.
Date
1904

Available online

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Public Domain Mark
You can use this work for any purpose without restriction under copyright law.
Public Domain Mark (PDM) terms and conditions https://creativecommons.org/publicdomain/mark/1.0
Credit: Improved apparatus to facilitate breathing in dust-laden or vitiated atmospheres. Public Domain Mark

About this work

Publication/Creation

Redhill : Printed for His Majesty's Stationery Office by Love & Malcomson, Ltd, 1904.

Physical description

2 pages, 1 folded leaf of plates : illustrations

Notes

Patent specification
Contains the complete specification

Publications note

Patent reference : 1903/27599

Type/Technique

Language

  • English


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