Channing, William F.(William Francis),1820-1901 · Boston : Thomas Hall · leaf 296
part affected. |3P* To produce a constant current, pull the lever at the end of the box. Manufactured and Sold, Wholesale and Retail, by THOMAS HALL, 13 Bromfield Street,BOSTON, MASS. Magnetic and Galvanic Apparatus made to order, and constantly on hand.Also, Conductors of every description. Dr.… … 13BROMFIELD ST.
Electrotherapy · Medicine, Physical · Electricity
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