Specification of William Brown Rooff : respirator.
- Rooff, William Brown.
Where to find it
About this work
London : Great Seal Patent Office, 1863 (London : George E. Eyre and William Spottiswoode)
1 unnumbered leaf ; 28 cm
At head of title: A.D. 1863, 9th February. No. 360.
"William Brown Rooff, of 7, Willow Walk, Kentish Town, in the parish of St. Pancras, in the county of Middlesex."