ALEXANDRIA, Va., March 19 -- United States Patent no. D1,067,290, issued on March 18, was assigned to SMK Co. Ltd. (Sagamihara, Japan).
"Lower electrode unit for welding" was invented by Masato Hidaka (Sagamihara, Japan).
The patent was filed on Oct. 19, 2022, under Application No. D/857,056.
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