ub. Co one may quickly ascertain, G2 Writefor Catalogue M. free, whether an invention probably is esting and valuable table showing the number of patents No. ‘ How to Make a Storage Battery. Lynn, Mass. McIntosh Battery & Optical Co. patentable by writing to Munn & Co. granted for the various… … CHICAGO, U.S. A. SCIENTIFIC AMERICAN DYNAMO. their homes by a new copyrighted method. Those learn- ELASTIC ROTARY-BLOW ing my method will be furnished work by me, by which cat EARN S8 TO S16 AWEEK, js3e'. Description of a plain shunt-wound dynamo of simple construction, capable of supplying a…
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