Trestle with crossed legs for supporting musical keyboards

摘要: This invention concerns a trestle support for musical keyboards of the type equippd with legs crossed in form an `X`, equipped new device that permits rapid and easy adjustment angle spread aforesaid height keyboard above ground by means special original joint allows quick mounting detachment transversal tubular bars positioned at either end trestle, those base resting on acting as stabilizing feet while ones upper ends act supporting arms keyboard.