. American agricultural implements; a review of invention and development in the agricultural implement industry of the United States ... Agricultural machinery; Agricultural machinery industry. AMERICAN AGRICUWURAI. IMPI<E;mENTS. 157. THE AERMOTOR STEEL BACK-GEARBD Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ardrey, Robert L. Chicago, The author

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectagricul, bookyear1894