GENCORP SUES GENERAL PARTNERS Gencorp Inc said it filed suit against the unsolicited 100 dlr-a-share tender offer of Wagner and Brown and AFG INdustries. Gencorp said it is seeking an injunction against the offer because it is violates federal securities laws and margin regulations. Gencorp also said its board is carefully studying the offer and will make a decision on whether or not shareholders should accept or reject it by March 31.