EAST PENN MANUFACTURING COMPANY, Appellant, v. Francisco R. PINEDA, et al., Appellees. LEETH BROTHERS, INC., Appellant, v. Francisco R. PINEDA, et al., Appellees. Nos. 88-885, 88-886 and 88-966.District of Columbia Court of Appeals.Argued February 5, 1990. Decided July 18, 1990. Appeal from the Superior Court of the District of Columbia, Rufus G. King III, J. […]