Lillian J. Lyhr, DK71010C
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Image credit: Lyhr, L.J. (1948)
On April 3, 1950, Lillian Julie Lyhr of Copenhagen patented a method for removing blackheads using tweezers with rounded rubber jaws. Her design allowed impurities to be safely extracted without injuring either the patient or the beautician.
Date of Application: 3 April 1948
Date of Issuance: 1 May 1950
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Francesca Chiaradia
PhD Candidate in Economics
My research interests include innovation, law, and information economics.