Definition of Ricoh Synchrofax
Ricoh Synchrofax is a Japanese dictating machine from 1959, reissued in 1974 as the 3M Sound Page (model 627AA and 627AG) as official teaching material in the US-state of Oklahoma. It is also known as sound paper. Inventor Sakae Fujimoto filed the patents US3074724A and US3046357A in 1959.
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Frequently asked questions
What is Ricoh Synchrofax?
Ricoh Synchrofax is a Japanese dictating machine from 1959, reissued in 1974 as the 3M Sound Page (model 627AA and 627AG) as official teaching material in the US-state of Oklahoma. It is also known as sound paper.