FRONTIER FIBERGLASS ENDURA BOAT MFG INC (OOB) J. VAUGHN BOATS JAMES A BOCK CO INC KETRON ANNAPOLIS GROUP HUDSONS MARINE RAILWAY GREW BOATS GRAND ISLAND MANUFACTURING HOVERCRAFT AMERICA INC M AND J FIBERGLASS & MARINE LES PRODUITS NAUTIQUES ROTECSA CANADA ENDURANCE MARINE PRODUCTS LTD