Clara A. Vaughan Morgan, GB189503096A
A New or Improved Preparation for Cleaning Human Teeth.
Image credit: Vaughan Morgan, C.A. (1895)
On March 3, 1894, Clara Ann Vaughan Morgan of Kensington, London, patented a novel tooth-cleaning powder. Her formulation combined chalk, pumice stone, borax, sapo animalis (animal soap), oil of cloves, and carmine.
Date of Application: 12 February 1895
Date of Issuance: 23 March 1895
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Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.