Curtis v. Mankus , 295 Pa. 381 ( 1929 )
Philadelphia v. Heinel Motors, Inc. , 142 Pa. Super. 493 ( 1940 )
American Air Filter Company, Inc. v. Michael J. McNichol C/o John F. Scanlan, Inc. And John F. Scanlan, Inc , 527 F.2d 1297 ( 1975 )