 On Oct. 15, 1931, George Beauchamp, Paul Barth and Adolph Rickenbacker formed the RO-PAT-IN Corporation, (elecktRO-PATent-INstruments or perhaps Rickenbacker Original-PATent-INstruments) and within a year, from Beauchamp's designs created the first successful electrically amplified guitar.Brewer was one of a very few orchestra leaders to use the guitar as his primary instrument so an amplified guitar was a dream come true.Brewer played primarily in the Hawaiian style with the guitar, face up, across the lap, intonated with a bar rather than fretted by hand.