Month: December 2021

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         2021/12/27 History of Orbray crystal glass [Story of Watch 3]
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         2021/12/24 Roundness and Cylindricity Measuring Machines
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         2021/12/22 Industrial applications of sapphire
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         2021/12/20 Watch glass [Story of Watch 2]
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         2021/12/14 Adamant Namiki’s Initiative for SDGs: Mid-term Report Meeting on ‘Fro-pro’
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         2021/12/13 Power Generated by Environmental Harvesting