1 EXHIBIT 10.22 ALL SECTIONS MARKED WITH TWO ASTERISKS ("**") REFLECT PORTIONS WHICH HAVE BEEN REDACTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION BY SPECIAL DEVICES, INCORPORATED, AS PART OF A REQUEST FOR CONFIDENTIAL TREATMENT....Purchase Agreement • January 28th, 1998 • Special Devices Inc /De • Miscellaneous chemical products • California
