Difference between revisions of "Tōken"

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Revision as of 13:01, 16 May 2007

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According to Sugiyama and McKeown, Tohken was the maker of the Crown (6×6) folder in the mid-1950s. The full name is given either as "Tohken Optical Works" or "Tohken Kogaku". The Japanese writing is perhaps 東研光学 (Tōken Kōgaku).

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