| 1937 HEVENOR CHARLES Automobile Bumper Patent |
| 1930 HART CHARLES Safety Bumper Patent Print Art |
| 1955 KRENGEL CHARLES Rear Bumper Hitch Patent |
| 1924 CHARLES Motor Vehicle Bumper Patent Print |
| 1928 CHARLES SCHMIDT Vehicle Bumper Patent Print |
| 1930 AMBUSH CHARLES Bumper Patent Print Art |
| 1922 HATHAWAY CHARLES Bumper Support Patent |
| 1927 CHARLES Safety Device And Bumper Patent |
| 1922 CHARLES Bumper For Automobiles Patent Print |
| 1930 PINARDI CHARLES Bumper Bracket Patent Print |
| 1920 CHARLES Bumper For Automobiles Patent Print |
| 1921 CHARLES Railway Bumper Block Patent Print |
| 1928 MARSTON CHARLES Bumper Patent Print Art |
| 1925 CHARLES Bumper For Automobiles Patent Print |
| 1921 KRAUS CHARLES Automobile Bumper Patent |
| 1926 KAUFMANN CHARLES Bumper Patent Print Art |
| 1926 CHARLES GOULD Towline Bumper Patent Print |
| 1937 GEDDES CHARLES Vehicle Bumper Patent Print |
| 1925 ROSS CHARLES Bumper WILLIAM L ROSS Patent |
| 1927 MORRELL CHARLES Bumper Patent Print Art |