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Scientific American, Vol. 22, No. 20 (May 1870) (1870)

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An illustration from Scientific American, Vol. 22, No. 20 (May 1870), 1870, leaf 0
best kind, such as will bear the closest scrutiny from eliminated as far as is possible for human skill to do it, in con- strong claims to public favor few have succeeded in combin- experts. The boiler is of the locomotive pattern, and is made of such ing all the requirements for an entirely… … AJOS' PORTABLE ENGINE FOR AGRICULTURAL USE. © 1870 SCIENTIFIC AMERICAN, INC.

Patents · Boiler · Antedated · Iron · Colburn · Consists · Antedated april · Relates · American museum · Natural history · Steam boiler · Patent office · Dated april · Boiler inspection · Stones fallen · Wrought iron · Heavenly bodies

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