THIRTY-FIRST YEAR. ad 84 FuitonStr lucustRateD perienced men ag examiners, specification writers, and Stone Channeling NEw yoR\ draftsmen that can be found, many of whom have been VOLUME XXXV.—NEW SERIES. CATaLocut: selected from the ranks of the Patent Office. NON-COMBUSTIBLE. STEAM BOILER & PIPE… … One copy Scientific American, one year ..83 20 Copies ot Patents. pared to furnish all sizes at terms as favorable as can be WARDWELL PATENT, obtained elsewhere. For descriptive Uthograph address One copy Scientific American, six months. 1,60 Persons desiring any patent issued from 1836 to Novem-…
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