No. 86-5060. Argued January 27, 1987. Decided April 3, 1987. Richard J. Hirn, Washington, D.C., for appellant. Terry R. Yellig, Washington, D.C., for appellee. Appeal from the United States District Court for the District of Columbia (Civil Action No. 81-03214). Before WALD, Chief Judge, STARR and DAVIS, Circuit Judges. Of the United States Court of Appeals for the Federal Circuit, sitting by designation pursuant to 28 U.S.C. § 291(a). Opinion for the Court filed by Chief Judge WALD. WALD, Chief