| 1929 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1920 O'CONNOR JOHN Roller Bearing Patent Print |
| 1930 O'CONNOR JOHN Car Construction Patent Print |
| 1920 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1920 O'CONNOR JOHN Brake Mechanism Patent Print |
| 1928 O'CONNOR JOHN Flying Machine Patent Print |
| 1931 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1927 O'CONNOR JOHN Rail Obstacle Patent Print |
| 1935 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1929 O'CONNOR JOHN Car Construction Patent Print |
| 1930 O'CONNOR JOHN Center Bearing Patent Print |
| 1924 O'CONNOR JOHN Side Bearing Patent Print Art |
| 1932 O'CONNOR JOHN Car Construction Patent Print |
| 1922 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1921 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1920 O'CONNOR JOHN Side Bearing Patent Print Art |
| 1921 O'CONNOR JOHN Roller Bearing Patent Print |
| 1932 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1924 O'CONNOR JOHN Hand Brake Patent Print Art |
| 1925 O'CONNOR JOHN Car Construction Patent Print |