Klara E.F. Braun, DK51192C
Til Anvendelse ved Haarbehandling bestemt Ørebeskytter, DK51192C.
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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
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