Bristol-Myers Co. v. Lit Bros., Inc. , 336 Pa. 81 ( 1939 )
Gever v. American Stores Co. , 387 Pa. 206 ( 1956 )
Sperry and Hutchinson Co. v. Margetts , 15 N.J. 203 ( 1954 )
General Electric Co. v. Kimball Jewelers, Inc. , 333 Mass. 665 ( 1956 )