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Tea in paper bags originated in 8th century China. Modern tea bags appeared in 1903/1904 and were successfully marketed in 1908 by Thomas Sullivan from New York. A tea bag packing machine was invented in 1929 by Adolf Rambold in Germany. The heat sealed paper bag was patented in 1930 by William Hermanson from Boston. The patent was sold to the Salada Tea Co. The rectangular tea bag was invented in 1944

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