Specification of Thomas Rothwell Bardsley and William Blackshaw
Subtitle: smoke-consuming furnaces
Contributors: Blackshaw, William
Publisher: Great Seal Patent Office; George E. Eyre and William Spottiswoode)
Published: 1868
Place of publication: London
Language: eng
Subjects: Smoke prevention; Furnaces; Steam-boilers
Notes: Cover title.

At head of title: A.D. 1867, 7th November. No. 3139.

"Thomas Rothwell Bardsley, of the city of Manchester, watchman, and William Blackshaw, of Manchester aforesaid, boot maker".