Specification of John Henry Johnson
Subtitle: furnaces for the prevention of smoke
Publisher: Great Seal Patent Office
Published: 1860
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces
Notes: Cover title.

At head of title: A.D. 1860, 17th February. No. 431.

John Henry Johnson, of 47, Lincoln's Inn Fields, in the county of Middlesex, gentleman".