ALEXANDRIA, Va., May 19 -- United States Patent no. D1,127,196, issued on May 19, was assigned to ALPINE NEDERLAND B.V. (Utrecht, Netherlands).
"Ear plug" was invented by Leo Marzolf (Paris), Coline Prevost (Paris) and Thomas Hartong (Amsterdam).
The patent was filed on Oct. 18, 2023, under Application No. D/905,259.
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