ALEXANDRIA, Va., Dec. 23 -- United States Patent no. D1,107,247, issued on Dec. 23, was assigned to Retsch GmbH (Haan, Germany).
"Laboratory mill" was invented by Ingo Michelmann (Dornstadt, Germany) and Christof Paul (Muenster, Germany).
The patent was filed on March 8, 2024, under Application No. D/931,721.
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