ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,160, issued on Jan. 20, was assigned to Infar Industrial Co. Ltd. (Chang-Hua County, Taiwan).
"Indexable wrench" was invented by Tai Hung Chen (Chang-Hua County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An indexable wrench includes a first member, a second member and a pivotal member. The first member has a first pivotal lug. The second member has a second pivotal lug and a third pivotal lug. The second pivotal lug includes a first engaging portion and a limiting groove, and a limiting member is arranged in the limiting groove. The pivotal member is movably inserted through the first pivotal lug, the second pivotal lug and the third piv...