ALEXANDRIA, Va., Dec. 9 -- United States Patent no. D1,104,781, issued on Dec. 9, was assigned to Carl Zeiss Vision International GmbH (Aalen, Germany).
"Abrasion tester" was invented by Stephan Duewel (Aalen, Germany) and Jonas Rothaupt (Aalen, Germany).
The patent was filed on March 29, 2024, under Application No. D/935,153.
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