Improvements in apparatus for generating and applying fumes, smoke or vapours for disinfecting, deodorizing or fumigating purposes, or for the testing of pipes or passages by what is known as the smoke test, or for analogous purposes
By: [John Watts]
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 : 1892/18317.