ALEXANDRIA, Va., July 21 -- United States Patent no. D1,135,837, issued on July 21, was assigned to AMAD Mennekes Holding GmbH & Co KG (Kirchhundem, Germany).

"Plug-in device" was invented by Jannik Malczok (Siegen, Germany).

The patent was filed on May 11, 2023, under Application No. D/891,938.

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