Specification of William Clark
Subtitle: inhaling apparatus
Publisher: Great Seal Patent Office
Published: 1864
Place of publication: London
Language: eng
Subjects: Respiratory Therapy; Instrumentation
Notes: At head of title: A.D. 1864, 9th February. No. 340.

"William Clark, of 53, Chancery Lane, in the county of Middlesex, engineer and patent agent."