Sophia S.R. Lindsey, GB189909489A
An Improved Hair Wash or Tonic.
Image credit: Lindsey, S.S.R. (1899)
On November 11, 1899, Sophia Sidney Rebecca Lindsey, a resident of Earl’s Crome near Worcester, was granted a patent for an innovative hair wash or tonic. The formulation included borax, ammonia, and spirits of wine.
Date of Application: 5 May 1899
Date of Issuance: 11 November 1899
For more information, please refer to the following webpage:
Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.