Specification of William Donald Napier
Subtitle: facilitating dental operations
Publisher: Great Seal Patent Office
Published: 1865
Place of publication: London
Language: eng
Subjects: Permanent Dental Restoration; Pumping machinery; Dental Equipment; Salivation
Notes: At head of title: A.D. 1865, 13th March. No. 706.

"William Donald Napier, of 22, George Street, Hanover Square, in the county of Middlesex."