Exhibit 4.2 This Document Constitutes Part of a Prospectus Covering Securities That Have Been Registered under The Securities Act of 1933. BOATRACS, INC. STOCK OPTION AGREEMENT This Agreement is made as of the 19th day of June, 1997, by and between...Stock Option Agreement • June 20th, 1997 • Boatracs Inc /Ca/ • Communications services, nec • California
