Specification of John Henry Johnson
Subtitle: artificial palates
Publisher: Great Seal Patent Office
Published: 1875
Place of publication: London
Language: eng
Subjects: Palate; Dental Prosthesis
Notes: Cover title.

At head of title: A.D. 1874, 1st December. No. 4123.

John Henry Johnson, of 47, Lincoln's Inn Fields, in the county of Middlesex, gentleman".