. Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery . JHE MESCO Mesco Dry Battery OVILR 1,000,000SOLD ANNUALLY Can be purchased in all citiesand most towns in the UnitedStates of Electric Supply low as worthless dry batter-ies. We are the largest manufac-turers of general electric suppliesin this country. Catalogue issuedyearly. Manhattan ElectricalSupply Co. 32 Cortlandt Street, New York TO OUR READERS ARE YOU IN THE MARKET FOR CO
. Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery . JHE MESCO Mesco Dry Battery OVILR 1,000,000SOLD ANNUALLY Can be purchased in all citiesand most towns in the UnitedStates of Electric Supply low as worthless dry batter-ies. We are the largest manufac-turers of general electric suppliesin this country. Catalogue issuedyearly. Manhattan ElectricalSupply Co. 32 Cortlandt Street, New York TO OUR READERS ARE YOU IN THE MARKET FOR COILS, X=RAY TUBES, BATTERIES, ORANY ELECTRICAL APPARATUS?. TF SO_ Send to our advertisers for their cataloguesand prices before buying. X=Ray Coils Telephone CoilsMedical Coils Spark Coils MAGNET WINDING OF EVERY DESCRIPTION C. F. SPLITDORF, i7-2t Vandewater St., New York
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