Improvements in apparatus for heating and ventilating, more especially intended for use in creating currents for the ventilation of sewers
By: [Stephen Holman]
Contributors: J. H. Johnson & Co
Publisher: Printed for Her Majesty's Stationery Office by Darling and Son, Ltd
Place of publication: London
Language: eng
Notes: Patent specification.

Contains both the provisional and the complete specification.

Patent reference : 1892/20781.