Device for installing an electric motor in crane mechanisms when reaching the limit position of the load, trolley or bridge .

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Device for installing an electric motor in crane mechanisms when reaching the limit position of the load, trolley or bridge

Номер патента: SU9816A1
Опубликовано: 31-05-1929
Автор(ы): П.С. Деднов
Принадлежит: П.С. Деднов