Specification of Michael Jackson
Subtitle: shield for the gums
Publisher: Great Seal Patent Office
Published: 1862
Place of publication: London
Language: eng
Subjects: Toothbrushing; Gingiva; Oral Hygiene
Description: Patent for "an improved shield for the gums, to protect them from injury when cleaning the teeth".
Notes: At head of title: A.D. 1862, 12th June. No. 1754.

"Michael Jackson, of Curtain Road, Shoreditch, in the county of Middlesex, dentist."