Specification of Hewley Charles Wordsworth : respirators.

  • Wordsworth, Hewley Charles.
Date:
1876
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Hewley Charles Wordsworth : respirators. Source: Wellcome Collection.

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    Wordsworth's Improvements in Respirators, facture of the parts of respirators of materials, such as stated, that will not readily become discolored or injuriously affected by moisture, as described. In witness whereof, I, the said Hewley Charles Wordsworth, have hereunto set my hand and seal, this Thirty-first day of December, in the year of our Lord One thousand eight hundred and seventy- five. H. C. WORDSWORTH, (l.s.) LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen's most Excellent Majesty. 1876.
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