Exhibit 99.1 Purchase Agreement ASSET SALE AND PURCHASE AGREEMENT THIS ASSET SALE AND PURCHASE AGREEMENT is made and entered into on April 14, 2004, by and among APA Optics, Inc., a Minnesota corporation (the "Seller"), and P.N.E., Inc. (d/b/a IRD), a...Purchase Agreement • April 19th, 2004 • Apa Optics Inc /Mn/ • Optical instruments & lenses
