Specification of John Wainwright
Subtitle: respirators
Publisher: Great Seal Patent Office
Published: 1859
Place of publication: London
Language: eng
Subjects: Respiratory Protective Devices
Notes: Cover title.

At head of title: A.D. 1858, 15th October. No. 2305.

"John Wainwright, of Birkenhead, in the county of Chester, dental surgeon".