TO CORRESPONDENTS. An Important Paragraph. Back Numbers and Volumes. Patent Claims. Patent Laws and Guide to Inventors. Terms of Advertising. American and Foreign Patent Agency R TMPORTANT TO IRON FOUNDRIES—The TXTOOD'S IMPROVED SHINGLE MACHINE T EONARD'S MACHINERY DEPOT BUILDERS AND WORKERS IN Wood, scientific american, 1852-06-19

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TO CORRESPONDENTS. An Important Paragraph. Back Numbers and Volumes. Patent Claims. Patent Laws and Guide to Inventors. Terms of Advertising. American and Foreign Patent Agency R TMPORTANT TO IRON FOUNDRIES—The TXTOOD'S IMPROVED SHINGLE MACHINE T EONARD'S MACHINERY DEPOT BUILDERS AND WORKERS IN Wood, scientific american, 1852-06-19

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