ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,888, issued on May 12, was assigned to TADANO LTD. (Kagawa, Japan).

"Work machine" was invented by Tsukasa Fujimoto (Kagawa, Japan) and Kenichi Nagakane (Kagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "This work machine comprises: a plurality of booms that extend and retract with the power of an actuator; a first pin that is moved by a first spring to connect adjacent booms and is moved by power of a motor to release a connection of the adjacent booms; a second pin that is moved by a second spring to connect the boom and the actuator and is moved by power of the motor to release a connection of the boom and the actuator; and a circuit th...