Okaya may refer to:
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Okaya & Co., Ltd., the oldest major Japanese trading company still in existence.
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Okaya, Nagano, a city in Nagano Prefecture, Japan
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Okaya Optical
Okaya Optical Co., Ltd. (岡谷光学機械株式会社; ''Okaya Kōgaku Kikai Kabushiki Gaisha'') was the manufacturer in the 1950s of "Lord" camera
A camera is an optical instrument that can capture an image. Most cameras can capture 2D i ...
, the manufacturer of Lord cameras and Vista binoculars
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