Patents and Registrations (1920-1929) : Statistical Yearbook of Imperial Japan 50 (1931) Table 86

Name: Patents and Registrations (1920-1929) : Statistical Yearbook of Imperial Japan 50 (1931) Table 86
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资源简介：

PERIOD: 1920-1929. SOURCE: [Statistical Tables of the Ministry of Commerce and Industry].

时期：1920-1929年。来源：[商业与工业部统计表]

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