Valve Flapper
Copyright © Targeted News Service 2024
2024-04-23
ALEXANDRIA, Virginia, April 24 -- Two inventors, David A Putnam, Calhoun, Louisiana, and Steve E. Moore, Calhoun, Louisiana, have been awarded a design patent (No. US D1024273 S1, initially filed Feb. 10, 2021) for "Valve flapper." . . .