Specification of James McIntyre
Subtitle: purifying sewage waters
Publisher: Great Seal Patent Office
Published: 1875
Place of publication: London
Language: eng
Subjects: Sewage; Sewerage; Filters and filtration
Notes: Cover title.

At head of title: A.D. 1874, 21st September. No. 3225.

"James McIntyre, of Port Glasgow, in the county of Renfrew"