Specification of William Johnson
Subtitle: furnaces
Publisher: Great Seal Patent Office
Published: 1855
Place of publication: London
Language: eng
Subjects: Furnaces; Smoke prevention; Boilers; Fireplaces; Fuel; Steam-engines
Notes: At head of title: A.D. 1854. No. 1793.

"William Johnson, of 47, Lincoln's Inn Fields, in the county of Middlesex, and of Glasgow, North Britain, civil engineer".