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(人力)田植機「農研号」TM1-3型
Digital Collection of the Farm Museum, the University of Tokyo
Theoretische Überlegungen über die elektrochemischen Eigenschaften des flüssigen Ammoniaks.
Source materials for Engineering History: The University of Tokyo Digital Archive
A Contribution to the Theory of Powder Stress in a Gun.
Source materials for Engineering History: The University of Tokyo Digital Archive
On the Characteristics of Axial Flow Turbines of Propeller Type.
Source materials for Engineering History: The University of Tokyo Digital Archive