ALEXANDRIA, Va., March 26 -- United States Patent no. D1,068,033, issued on March 25, was assigned to CKD Corp. (Aichi, Japan).
"Spacer for shut-off valve" was invented by Shinichi Okamoto (Komaki, Japan), Ikuo Ogino (Komaki, Japan) and Shinji Itoh (Komaki, Japan).
The patent was filed on Feb. 23, 2022, under Application No. D/827,931.
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