A feed of cases that cite 421 U.S. 193.
http://supreme.justia.com/
421 U.S. 1932007-12-13
http://supreme.justia.com/us/318/418/index.html
Largent v. Texas, 318 U.S. 418 (1943)1943-1-1
http://supreme.justia.com/us/334/62/index.html
Republic Nat. Gas Co. v. Oklahoma, 334 U.S. 62 (1948)1948-1-1
http://supreme.justia.com/us/316/98/index.html
Gorman v. Washington University, 316 U.S. 98 (1942)1942-1-1
http://supreme.justia.com/us/284/8/index.html
Bandini Petroleum Co. v. Superior Court, 284 U.S. 8 (1931)1931-1-1
http://supreme.justia.com/us/278/63/index.html
New York ex Rel. Bryant v. Zimmerman, 278 U.S. 63 (1928)1928-1-1
http://supreme.justia.com/us/407/104/index.html
Colten v. Kentucky, 407 U.S. 104 (1972)1972-1-1