Specification of Peter Headridge
Subtitle: dentistry
Publisher: Great Seal Patent Office
Published: 1869
Place of publication: London
Language: eng
Subjects: Maxilla; Dental Instruments; Therapy; Mandible; Tooth Abnormalities; Braces
Description: Patent for "improvements in dentistry for expanding the upper and lower maxillary".
Notes: Cover title.

At head of title: A.D. 1869, 10th April. No. 1101.

"Peter Headridge, of 5, Lime Grove, Manchester, in the county of Lancaster".