ALEXANDRIA, Va., July 28 -- United States Patent no. D1,137,681, issued on July 28, was assigned to INTERACOUSTICS A/S (Middelfart, Denmark).
"Keyboard" was invented by Lillian Nielsen (Middelfart, Denmark), Ole Lundsgaard (Middelfart, Denmark) and Steffen Schmelling (Hellerup, Denmark).
The patent was filed on April 9, 2024, under Application No. D/936,603.
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