VOICESPhoto courtesy Paul Kronfeld and Martin Klein / MIT Museum, from the Martin Klein CollectionKlein Side Scan Sonar was used to map the ocean ? oor near the Ixtoc oil ? eld blowout. The company known today as Klein Marine Systems, Inc. has ori-gins stretching back to the 1960s when Marty Klein, who many consider to be the father of side scan sonar, began building his own devices from his home in Lexington, Mass. As this iconic subsea technology company approaches 50, MTR speaks with Marty Klein as well as Klein Marine System’s general manager, Frank Cobis. By Eric Haun2017 September 16 MTRMTR #7 (1-17).indd 16 MTR #7 (1-17).indd 16 8/24/2017 11:25:36 AM8/24/2017 11:25:36 AM