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Heritage Science
Fig. 1 | Heritage Science

Fig. 1

From: Safeguarding our dentistry heritage: a study of the history and conservation of nineteenth–twentieth century dentures

Fig. 1

A Scheme of the steam apparatus patented by the Hyatt brothers in 1874 [32]. B Sectional view of the celluloid steam apparatus manufactured by the Celluloid Manufacturing Company and sold by S. S. White Dental Manufacturing Company [36, 37]. C Example of one of these steam machines, collection of the National Museum of American History, catalog number M-08954. D Scheme of the "dry-heat" apparatus patented by Ferdinand Heindsmann, assignor to S.S. White, in 1875. E Patent model, NMAH collection, catalog number M-04242. F "Heindsmann’s heater” was manufactured and sold by S. S. White Dental Manufacturing Company in 1876 (Catalogue of dental materials, furniture, instruments, etc., for sale by Samuel S. White) [36]

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