Specification of William Brown Rooff
Subtitle: respirator
Publisher: Great Seal Patent Office
Published: 1863
Place of publication: London
Language: eng
Subjects: Breathing apparatus; Respirators (Medical equipment)
Notes: Cover title.

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."