| 1920 ALBERT Boat Listing Apparatus Patent Print |
| 1931 HYLAND Life Boat Launching Apparatus Patent |
| 1932 OTTO Boat Handling Apparatus Patent Print |
| 1926 EDWARD Boat Handling Apparatus Patent Print |
| 1959 LINDMARK Boat Holding Apparatus Patent |
| 1952 LINSMEIER Boat Launching Apparatus Patent |
| 1940 OTTO Boat Handling Apparatus Patent Print |
| 1963 MORGAN Boat Ride Apparatus Patent Print Art |
| 1960 HORN Boat Propelling Apparatus Patent Print |
| 1953 VOIGT Boat Handling Apparatus Patent Print |
| 1951 SMITH Boat Fastening Apparatus Patent Print |
| 1940 ADOLPH Boat Propulsion Apparatus Patent |
| 1961 EDWARD Boat Steering Apparatus Patent Print |
| 1961 LETOURNEAU Boat Beach Apparatus Patent |
| 1920 FULLER Boat Launching Apparatus Patent |
| 1922 GEORGE Boat Launching Apparatus Patent |
| 1958 HARRY Boat Steering Apparatus Patent Print |
| 1966 FRANK Boat Manoeuvring Apparatus Patent |
| 1925 GEORGE Boat Launching Apparatus Patent |
| 1950 LEWIS Boat Lowering Apparatus Patent Print |
| 1938 FROMM Boat Propelling Apparatus Patent |
| 1966 LAMER Boat Hoist Apparatus Patent Print Art |
| 1946 RAULERSON Boat Propulsion Apparatus Patent |
| 1961 HAMEL Boat Guiding Apparatus Patent Print |
| 1963 ARROW DEV CO Boat Ride Apparatus Patent |
| 1962 HURST Boat Launching Apparatus Patent Print |
| 1938 ROTTMER Boat Detaching Apparatus Patent |
| 1960 WALLACE Boat Mooring Apparatus Patent Print |
| 1939 PAYSON Boat Trailer Apparatus Patent Print |
| 1964 MEARS Boat Storage Apparatus Patent Print |
| 1960 DICK Boat Mooring Apparatus Patent Print |
| 1966 DROTT MFG CORP Boat Hoist Apparatus Patent |
| 1970 TROPF CARL Boat Apparatus Patent Print Art |
| 1962 HAMEL Boat Guiding Apparatus Patent Print |
| 1967 GEORGE Boat Trailer Apparatus Patent Print |