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History of Product Developments 製品開発史

History of Sumitomo Chemical

The Toltecs and Maya developed wheels for religious reasons but not for wheelbarrows or other practical uses The reason is that they had sufficient slave labor

The Hawaiian and other Polynesian seafarers developed navigation methods based on observation of constellations and currents so that they could sail intentionally from Tahiti to Hawaii and back

Past Results of the Asian-Pacific City Summit

Risho in Society 106

Products News 194

Product Guide - デルタインターナショナル

Development of Mobile Broadband and Spectrum Policy Vision

Ritsumeikan Journal of Asia Pacific Studies
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