ALEXANDRIA, Va., Sept. 10 -- United States Patent no. D1,092,569, issued on Sept. 9, was assigned to RAIMONDI S.P.A. (Modena, Italy).
"Vibration compactor" was invented by Riccardo Sighinolfi (Rubiera, Italy).
The patent was filed on May 27, 2021, under Application No. D/785,883.
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