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Sewing machine by Elias Howe

circa 1846

Clarke's-type electromagnetic machine

1854-1860

Davis and Kidder's magneto-electrotherapy machine, hand-cranked, made by W H Burnap of Lowell, Mass., U.S.A., 1854-1898

Magneto-electrotherapy machine

1854-1880

Late 19th century Davis magneto-electric therapy apparatus, hand-cranked, by Burnap of Lowell, Massachusetts

Late 19th century Davis magneto-electric therapy apparatus

1854-1890

Mid 19th century magneto-electric therapy apparatus, hand cranked, invented by Davis 1854, made by Burnap of Lowell, Mass.

Mid 19th century magneto-electric therapy apparatus

1854-1880

Davis' mid C19 magneto-electric therapy machine, handcranked, by Burnap of Lowell, Mass., supplied by Mathews, London, U.S.A., 1860-1880

Davis' mid C19 magneto-electric therapy machine

1860-1880