Specification of William Pilling and Benjamin Harlow
Subtitle: stench traps, &c
Contributors: Harlow, Benjamin
Publisher: Great Seal Patent Office
Published: 1873
Place of publication: London
Language: eng
Subjects: Sewerage; Sewage; Odor control
Notes: Cover title.

At head of title: A.D. 1873, 10th February. No. 480.

"William Pilling, of Salford, in the county of Lancaster... and Benjamin Harlow, of Macclesfield, in the county of Chester, engineer".