The Scientific American reference book; a compendium of useful information for inventors and mechanics, containing the complete patent laws of the United States ... forms for patents, caveats, assignments, licenses, and shop rights ... etc., etc (1876)
New York, Munn · leaf 36
case submitted to our care re-ceives the most careful study during its preparation, themost prompt dispatch, and the most thorough attention atevery stage of its subsequent progress. HOW TO CONVEBT PAPER INTO GOLD. Send a subscription in paper money to Munn & Co., andenjoy a years reading of… … HE speed of an electric spark travelingover a copper wire, has been ascertainedby Wheatstone to be two hundred andeighty-eight thousand miles in a second. Parties sending models to The Scien-tific American office, on which they de-cide not to apply for Letters-Patent, andwhich they wish preserved,…
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