A feed of cases that cite 278 U.S. 503.
http://supreme.justia.com/
278 U.S. 5032007-12-13
http://supreme.justia.com/us/246/450/index.html
Cudahy Packing Co. v. Minnesota, 246 U.S. 450 (1918)1918-1-1
http://supreme.justia.com/us/278/509/index.html
Rice & Adams Corp. v. Lathrop, 278 U.S. 509 (1929)1929-1-1
http://supreme.justia.com/us/261/330/index.html
Pullman Co. v. Richardson, 261 U.S. 330 (1923)1923-1-1
http://supreme.justia.com/us/223/335/index.html
United States Express Co. v. Minnesota, 223 U.S. 335 (1912)1912-1-1