ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,713, issued on Aug. 12, was assigned to POE LANG ENTERPRISE Co. LTD. (Taichung, Taiwan).
"Arrow chain structure" was invented by Chi-Chang Liu (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An arrow chain structure includes an arrow chain body and an extension member. The arrow chain body has a base part, the base part has an arrow groove and a pivoting member disposed on a side thereof, the pivoting member has an accommodation groove formed on a side thereof corresponding to the other side of the arrow groove. The extension member is disposed on the arrow chain body. The arrow chain bodies can be pivotally connected to each other ...