Improvements in apparatus for heating and ventilating, more especially intended for use in creating currents for the ventilation of sewers / [Stephen Holman].

  • Holman, Stephen.
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in apparatus for heating and ventilating, more especially intended for use in creating currents for the ventilation of sewers / [Stephen Holman]. Source: Wellcome Collection.

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    A.D. 1892. Nov. 16. N° 20,781. HOLMAN’S Complete Specification. SHEETS) SHEET 2. SHEET 1 i I i Lobtoon. Printed by Darukg and Sosr Id. fur Her M.ijestys Stationery- Office 1893. Maibj iSoH«,Pbato-t«4l»o fThis Drawing is cl reproduction of the Original on a reduced scale]
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