ALEXANDRIA, Va., March 17 -- United States Patent no. D1,118,977, issued on March 17, was assigned to SAFESMART LLC (Santa Fe Springs, Calif.).
"Set of handrails for an adjustable staircase" was invented by Shane Joseph Wearmouth (Los Angeles).
The patent was filed on Feb. 8, 2023, under Application No. D/870,900.
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