1. United States Patents on Dried Whey. Bosworth, A. W. 1,246,858 (1917);
2. Chuck, F. Y. 2,016,592 (1935) ;
3. Eldredge, E. E. 1,923,427 (1933);
4. Kraft, G. H. 2,118,252 (1938) ;
5. Lavett, C. O. 2,172,393 (1939), 2,188,907 (1940), 2,197,804 (1940);