Original sentence: These included 14 for the telephone and telegraph, four for the photophone, one for the phonograph, five for aerial vehicles, four for "hydroairplanes," and two for selenium cells
Edited sentence: Although this attitude is widely seen as paternalistic and arrogant today, it was mainstream in that era.These included 14 for the telephone and telegraph, four for the photophone, one for the phonograph, five for aerial vehicles, four for "hydroairplanes," and two for [selenium] cells