This article is a stub. You can help Camerapedia.org by expanding it. The name Niishin Riken Kogyo appears on the Rionflex, a Japanese 6×6 pseudo TLR of the 1950s. This was probably the name of the manufacturing company. Retrieved from "https://camerapedia.fandom.com/wiki/Niishin_Riken?oldid=34461" Categories: Stub Japanese camera makers Add category Cancel Save Community content is available under GFDL unless otherwise noted.