Specification of Henry Dircks
Subtitle: steam-boiler and other furnaces
Publisher: Great Seal Patent Office
Published: 1855
Place of publication: London
Language: eng
Subjects: Steam-boilers; Smoke prevention; Furnaces
Notes: Cover title.

At head of title: A.D. 1854. No.1731.

"Henry Dircks, of the patent agency office, 32, Moorgate Street, in the city of London, engineer".