ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,535, issued on Nov. 25.
"Transportable autonomous dental unit" was invented by Cesar Augusto Olsen (Palhoca, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transportable autonomous dental unit is described, mounted on a base to which side walls are associated in order to create a container of around 4 liters of volume, featuring a dental chair whose column has a compressed air tank, a complete instrument table, a compressor to fill the needs of the pneumatic peripherals and venturi suction device for compressed air, means for connection to a water supply line, a wastewater drainage duct, and a power source, offering the same operation condi...