He is something of interest.
1958 - Dietz introduced the Visi-Flasher
1962 - Dietz opened their Visi-Flasher rental office in Chicago.
1963 - Opened a VF rental office in Detroit
1965 - Opened a VF rental office in Boston.
1991 - Dietz sold the tooling for the Visi-Flasher to Reva Plastics of Weedsport, NY
2001 - Reva files bankruptcy and the tooling for the Visi-Flasher was moved to China.