SCHAUMBURG, Ill.--(BUSINESS WIRE)--Sparton Corporation (NYSE:SPA) announced that its wholly owned subsidiary, Sparton DeLeon Springs, LLC completed the acquisition of certain assets of Argotec, Inc. on December 8, 2014 in an all-cash transaction. Argotec, located in Longwood, FL, develops and manufactures sonar transducer products and components for the U.S. Navy, and provides aftermarket servicing. The products, primarily hydrophones and projectors, are used in test equipment, environmental se