0001193125-04-030167 Sample Contracts
EXHIBIT 1 JOINT FILING AGREEMENT The undersigned hereby agree to the joint filing of the Schedule 13G to which this Agreement is attached. Dated: February 26, 2004 OBERWEIS ASSET MANAGEMENT, INC.Joint Filing Agreement • February 26th, 2004 • Oberweis Asset Management Inc/ • Switchgear & switchboard apparatus