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Scientific American, Vol. 16, No. 10 (1867) (1867)

leaf 7

An illustration from Scientific American, Vol. 16, No. 10 (1867), 1867, leaf 7
e an upward so that while one wheel travels in the furrow and the other since received acopy of the bill itself, with accompanying draft, and in this way produce ventilation. Artificial heat on on the firm surface the plow frame shall be kept level, or is documents, from which it appears that… … form of a bill of relief, wherein plow deep or shallow, as de- BEQUERET & DEMOULIN’S GANG PLOW. sired, using one or both shares, he prays that Congress will authorize the Commissioner of Patents to hear and determine | venient in hot weather, and in dwelling houses absolutely out and that it is…

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