Abstract: A quick release single arm clamp used temporarily on a miter box to securely clamp a workpiece against the inner side where the invention is placed on one edge of a side of the miter box to securely clamp a workpiece against the inner side where the invention is placed on one edge of a side of the miter box by means of a bracket with an axle fitted with a knob to be either pushed in or pulled out at one end with the other end adapted to fit the cavity of the miter box with a space bar at its end longer than it is wide which when the axle is pushed in holds the workpiece in tension by a spring and lever combination through which the axle is threaded which tension can be released by a lever releasing the tension.

Abstract: A prefabricated thermoplastic clasp from whose structure a permanent clasp is formed around teeth anchoring partial removable prosthesis and dentures without the necessity of fashioning metal clasps by the lost wax method or by plastic clasps by injection molding processes. The prefabricated clasps are easily contoured by applying heat to the area which the technician wishes to shape and bend. This allows the clasp to be a one step operation thereby omitting time consuming procedures.

Abstract: An equal input output learning device that can be added to or built into any musical instrument facilitating the teaching and improvisation of music and muscial theory using the musical instrument itself which device consists of a plurality of 12 switches representing the equal tempered 12 tone Chromatic scale, and which switches can be easily activated and changed by the player, as desired, using switches separately or in any combination, and, which switches when activated show all notes of the pitch classes chosen by indicators on the musical instrument together with indicators on the switches themselves.