This notebook covers the period October-November 1880. It contains drawings by Edison for patent applications and caveats, along with drafts by Edison of two caveats. The subjects include carbon lamps, sockets, meters, and dynamos. The name of Charles Batchelor appears frequently as a witness. The label on the front cover is marked "Sketches for Patents" and "Edison." The book contains 64 numbered pages. The left-hand pages are unnumbered; page 64 is blank. Courtesy of Thomas Edison National Historical Park.