Specification of Thomas Walker and Thomas Ferdinand Walker : utilizing sewage.
- Walker, Thomas, 1859-1912.
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About this work
London : Great Seal Patent Office, 1865 (London : George E. Eyre and William Spottiswoode)
8 pages, 2 folded leaves of plates : illustrations ; 28 cm
At head of title: A.D. 1864, 22nd September. No. 2329.
"Thomas Walker and Thomas Ferdinand Walker, both of Birmingham, in the county of Warwick, engineers".