ALEXANDRIA, Va., June 9 -- United States Patent no. D1,129,606, issued on June 9, was assigned to Aarke AB (Sweden).
"Filter" was invented by Martin Edlund (Stockholm), Carl Ljungh (Stockholm), Jonas Groth (Stockholm) and Erik Wahlin (Stockholm).
The patent was filed on Sept. 1, 2022, under Application No. D/851,993.
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