Part 3 > Fifth National Industrial Exhibition, 1903 - Section 8 > Category 37: Electric Machinery

Rough Drawing of Tsuboi-type Block System Machine Exhibited by Kibataro Oki

Dai gokai naikoku kangyo hakurankai jimukyoku (ed).: Dai gokai naikoku kangyo hakurankai shinsa hokoku part 8 (1904)

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