Willett Mfg. Co. v. Root Spring Scraper Co. , 55 F.2d 858 ( 1932 )
Pennwalt Corporation, Appellant/cross-Appellee v. Durand-Wayland, Inc., Appellee/cross-Appellant , 833 F.2d 931 ( 1987 )
Hilton Davis Chemical Co. v. Warner-Jenkinson Company, Inc. , 62 F.3d 1512 ( 1995 )