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719,717 - J. Arbuckle - Feb. 3, 1903
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In 1865 John Arbuckle and his brother Charles, partners in a Pittsburgh grocery business, patented a process for roasting and coating coffee beans with an egg and sugar glaze to seal in the flavor and aroma. The original patent was applied for in 1897.
APPARATUS 'FOR ROASTING COFFEE. , SPECIFICATION forming part of Letters Patent No. 719,717, dated February 3, 1903. Original application filed April 22, 1897.
APPARATUS 'FOR ROASTING COFFEE. , SPECIFICATION forming part of Letters Patent No. 719,717, dated February 3, 1903. Original application filed April 22, 1897.
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