| 1930 ANTHONY CO Dumping Body Patent Print Art |
| 1940 FRENTZEL Dumping Mechanism Patent Print Art |
| 1927 EGHOLM JAMES Dumping Truck Patent Print Art |
| 1921 PETERSON HENRY Dumping Bed Patent Print Art |
| 1924 CAUDLE MELVIN Dumping Car Patent Print Art |
| 1929 BARRETT Dumping Body Hoist Patent Print Art |
| 1922 GERHARD IMMAND Dumping Car Patent Print Art |
| 1931 DEWEY Vehicle Dumping Body Patent Print Art |
| 1929 MERLE LUCK Dumping Vehicle Patent Print Art |
| 1935 KIMBALL Self Dumping Scow Patent Print Art |
| 1921 HARRY PAGE Dumping Wagon Patent Print Art |
| 1933 ANTHONY CO Dumping Body Patent Print Art |
| 1925 DEWALD ETS Dumping Vehicle Patent Print Art |
| 1936 SMITH ALBERT Dumping Car Patent Print Art |
| 1921 BARKER PERCY Dumping Truck Patent Print Art |
| 1921 GEORGE OLLIE Dumping Body Patent Print Art |
| 1923 HOUGH EARL Dumping Gear Patent Print Art |
| 1933 JOHAN CARLSSON Dumping Car Patent Print Art |
| 1920 WEITZEL Side Dumping Wagon Patent Print Art |
| 1926 GEDEON Dumping Scow Patent Print Art |
| 1942 SMITH SCOTT Dumping Body Patent Print Art |
| 1920 NATHAN DOUD Dumping Wagon Patent Print Art |
| 1923 SCOY Dumping Cargo Carrier Patent Print Art |
| 1926 HOUGH EARL Dumping Gear Patent Print Art |
| 1923 HANCOCK GEORGE Dumping Car Patent Print Art |
| 1923 TRIMMER MOSES Dumping Body Patent Print Art |
| 1922 PAUL KRUGER Dumping Car Patent Print Art |
| 1934 HEIL CO Dumping Mechanism Patent Print Art |
| 1951 ROY CORNING Dumping Device Patent Print Art |
| 1928 HENRY Self Dumping Barge Patent Print Art |
| 1920 LEE ALBERT Dumping Hopper Patent Print Art |
| 1928 FRED BISZANTZ Dumping Body Patent Print Art |
| 1923 MELUS GUYNN Dumping Wagon Patent Print Art |
| 1926 ANTHONY CO Dumping Body Patent Print Art |
| 1923 COPPOCK FRED Dumping Wagon Patent Print Art |
| 1947 THOMAS JR Dumping Carrier Patent Print Art |
| 1920 TAIT ALFRED Dumping Truck Patent Print Art |
| 1924 WILSON Dumping Scow Patent Print Art |
| 1925 SNYDER CECIL Dumping Truck Patent Print Art |
| 1924 BROWN ROY Dumping Wagon Patent Print Art |
| 1932 ANTHONY CO Dumping Body Patent Print Art |
| 1932 HEIL CO Dumping Mechanism Patent Print Art |
| 1923 GUY M PETERS Dumping Gear Patent Print Art |
| 1960 GOODLOE Dumping Containers Patent Print Art |
| 1922 MARTIN NESTER Dumping Body Patent Print Art |
| 1950 PAUL Trailer Dumping Hitch Patent Print Art |
| 1921 SARGENT GEORGE Dumping Bed Patent Print Art |
| 1926 HUG COMPANY Dumping Truck Patent Print Art |
| 1928 BRICK PERRY Dumping Truck Patent Print Art |
| 1923 KRUPP AG Dumping Wagon Patent Print Art |
| 1925 LEE SAXON Dumping Body Patent Print Art |
| 1959 HOFF EMIL Dumping Trailer Patent Print Art |
| 1939 ANTHONY CO Dumping Body Patent Print Art |
| 1966 RYAN Toy Dumping Mechanism Patent Print Art |
| 1923 PAUL KRUGER Dumping Wagon Patent Print Art |
| 1925 PHILIP Self Dumping Scow Patent Print Art |
| 1926 CLARK THOMAS Dumping Truck Patent Print Art |
| 1940 HEIL CO Dumping Mechanism Patent Print Art |
| 1922 HERBST ABRAM Dumping Truck Patent Print Art |
| 1922 KRUPP AG Dumping Car Patent Print Art |
| 1925 ASTROM CARL Dumping Car Patent Print Art |
| 1966 Dumping Device Patent Print Art |
| 1922 SALE ROBERT Dumping Cart Patent Print Art |
| 1925 OTTO BALLERT Dumping Truck Patent Print Art |
| 1923 HENRY MAYER Dumping Wagon Patent Print Art |
| 1924 LEROY TRIMMER Dumping Body Patent Print Art |
| 1949 LONG LTD E Dumping Car Patent Print Art |