Specification of Benjamin Green
Subtitle: storing and treating sewage
Publisher: Great Seal Patent Office
Published: 1874
Place of publication: London
Language: eng
Subjects: Sewage; Sewerage; Sewer gas; Sewage disposal plants
Notes: Cover title.

At head of title: A.D. 1873, 24th November. No. 3833.

"Benjamin Green, of Plaistow, in the county of Essex, contractor"