Specification of Walter Brown
Subtitle: treatment of sewage
Publisher: Great Seal Patent Office
Published: 1873
Place of publication: London
Language: eng
Subjects: Sewage; Manures; Sewer gas; Disinfection and disinfectants; Sewerage; Sewage disposal plants
Notes: Cover title.

At head of title: A.D. 1873, 29th April. No. 1555.

"Walter Brown, of 30 Pulross Road, Stockwell, in the county of Surrey"