Klara E.F. Braun, DK51192C

Til Anvendelse ved Haarbehandling bestemt Ørebeskytter, DK51192C.

Image credit: Braun, K.E.F. (1934)

On January 27, 1936, Klara E.F. Braun of Copenhagen received a patent for a novel ear protector made of rubber, designed for use with electric hair curlers.

Date of Application: 20 September 1934

Date of Issuance: 27 January 1936

For more information, please refer to the following webpage:

Francesca Chiaradia
Francesca Chiaradia
PhD Student in Economics

My research interests include information economics, law and economics, economics of innovation.