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Scientific American, Vol. 56, No. 18 (April 1887) (1887)
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of means, to whom writing was a it had become badly corroded, and many parts were in the project of inventing a machine that would take very irksome employment. The two patents and the broken. Mr. H. R. Cummings, of Worcester, gathered the place of pen and pencil for those who were blind or present… … IMPROVES 0&£. CRUSHER AND AMALGAMATOR.-[For description see page m.'\ © 1887 SCIENTIFIC AMERICAN, INC.Patents · Iron · Machine · Munn · Patented · Scientific American · Device · Commutator cylinder · Tuning forks · Address munn · Specific gravity · Cast Iron · Sewing machine · American supplement · Express money · Stove pipe
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