The first book of its kind, the result of more than 20 years research into American stringed instruments and their makers. This is an index to the US Patent & Trademark Office database of acoustic musical instrument patents, sorted five different ways: by state and city, by patentee name, by patented for (type of instrument), by patent number, and by issue date. Includes approximately 1200 patentees representing 1181 patents for banjos, mandolins, guitars, ukuleles, zithers and zither variants, plus more than 100 drawings of interesting patents. The period covered begins when the Patent Office began keeping hand-written records in 1831 through 1949 when electric instruments came to dominate the records. Comb-bound. 127 pp.