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klasifikacija

patents are classified (organized) in the U.S. by a system using a 3 digit class and a 3 digit subclass to describe every similar grouping of patent art. A single invention may be described by multiple classification codes.

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Areta Frenklin

Also known as "The Queen of Soul," Aretha Franklin is an American singer, songwriter, and pianist. Born on March 25, 1942, she is best known ...