EXHIBIT 10.4 AMENDED AND RESTATED MASTER REPURCHASE AGREEMENT The Master Repurchase Agreement dated as of August 18, 1995 between Thermo Electron Corporation, a Delaware corporation ("Seller"), and Thermo Optek Corporation, a Delaware corporation (the...Master Repurchase Agreement • March 17th, 1997 • Thermo Optek Corp • Laboratory analytical instruments • Massachusetts
