H. Reiber of Teletype Corporation received U.S. Patent 2,146,380 in 1939 for a daisy wheel printer.In 1970 a team at Diablo Systems led by engineer Dr Andrew Gabor developed the first commercially successful daisy wheel printer, a device that was faster and more flexible than IBM's Selectric devices, being capable of 30 cps (characters per second), whereas the Selectric operated at 13.4 cps.