ALEXANDRIA, Va., June 2 -- United States Patent no. D1,128,432, issued on June 2, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Washer for bulkhead adapters" was invented by David Michael Ellerie (Morton, Ill.) and Christopher Michael Gruel (Edwards, Ill.).

The patent was filed on March 15, 2024, under Application No. D/932,821.

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