ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,821, issued on Dec. 9, was assigned to NIFCO INC. (Yokosuka, Japan).

"Multi-purpose support device" was invented by Takahiro Yamashita (Yokosuka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A support device includes a movable body provided movably between an advanced position for forming a projection on an object, and a retracted position for forming a recess on the object. The multi-purpose support device includes a casing body movably supporting the movable body, a biasing body exerting a biasing force to the movable body, and a control mechanism for the movable body. The control mechanism performs a cycle of controlling the movable body i...