McRoberts v. Opfermann , 360 Pa. 341 ( 1948 )
Koehring Company v. Ventresca , 334 Pa. 566 ( 1939 )
Tanner v. Van Gelder Yarn Co., Inc. , 314 Pa. 20 ( 1934 )
Farrell v. N. Scran. B. T. Co. , 314 Pa. 29 ( 1934 )