ALEX WILLIS BOAT CONST HYDRO-SLED MFG CO MARATHON MARINE MFG INC AMERICAN AIR BOAT CORP EASTPORT SAILING YACHTS INC CURRITUCK BOATS INC GLIDER MARKETING LTD MAGNER & SONS BOATWORK LANSING HYDROCRAFT DOHLE-MADLEM ALUM BOAT FIBERGLASS UNLIMITED ACE SPEEDBOAT CO