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昆虫分類記憶ノ歌
Hakubutsu no Tomo
戸田ヶ原採取紀行 午後
Hakubutsu no Tomo
P17ヘルショウ式操舵機
Source materials for Engineering History: The University of Tokyo Digital Archive
Inductance Calculation
Source materials for Engineering History: The University of Tokyo Digital Archive
日立製作所日立工場實習報告
Source materials for Engineering History: The University of Tokyo Digital Archive
Theoretical Investigation about Davits
Source materials for Engineering History: The University of Tokyo Digital Archive
On Launching Operation. 神戸三菱
Source materials for Engineering History: The University of Tokyo Digital Archive