Dental Impression Tray
date: label: patent date
content: 1871-01-31
notes: label: Description
content: Patent model for Mary Ann Boughton, “Improvement in the Modes of Forming the Air-Chamber in Dental Plates,” U.S. Patent 111,429 (Jan. 31, 1871). "My invention consists of a mode . . . of forming the air-chamber in plates for articial teeth by the use of a small block of wax or equivalent material, which is caused to adhere to the roof of the mouth while the cast of the latter is being taken."
label: Description
content: Mary Ann Boughton, of Norwalk, Connecticut, held two patents. The second, No. 113,842 (April 18, 1871) was for a cooling stove. Examples of both were shown in the Women’s Pavilion held in Chicago in 1893.
label: Location
content: Currently not on view
topic: label: Subject
content: Women
setName: label: See more items in
content: Medicine and Science: Medicine
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-04228
label: catalog number
content: M-04228
label: accession number
content: 89797
label: patent number
content: US111429A
objectType: label: Object Name
content: impression tray, patent model
label: Object Name
content: dental device
label: Other Terms
content: Dentistry
physicalDescription: label: Measurements
content: overall: 5/8 in x 3 3/8 in x 2 5/8 in; 1.5875 cm x 8.5725 cm x 6.6675 cm