Specification of Thomas Hall
Subtitle: furnaces of steam-engine boilers, &c
Publisher: Great Seal Patent Office
Published: 1854
Place of publication: London
Language: eng
Subjects: Steam-boilers; Smoke prevention; Furnaces
Description: Patent for "an improved furnace for consuming smoke and economizing fuel"
Notes: At head of title: A.D. 1839. No. 7974.

"Thomas Hall, of Leeds, in the county of York, brass founder."