| 1949 AMERICAN STEEL FOUNDRIES Brake Beam Patent |
| 1949 BARROWS Brake Beam Support Patent Print Art |
| 1949 BARTON Railway Brake Beam Structure Patent |
| 1949 BASELT WALTER Brake Beam Patent Print Art |
| 1949 OSNER Unitary Brake Beam And Head Patent |
| 1949 AMERICAN STEEL FOUNDRIES Brake Beam Method Making |
| 1949 WHITNEY Brake Beam And Method Of Making Art |
| 1949 CHICAGO Railway Brake Beam Mounting Art |
| 1949 BASELT Truss Type Brake Beam Casting Patent |
| 1949 FREDERIC Brake Rigging With Beam Retracting Spring |
| 1949 AMERICAN STEEL FOUNDRIES Brake Beam Safety Support |
| 1949 FREDERIC SCHAEFER Brake Beam Patent Print |
| 1949 KASS Brake Beam Safety Support Patent Print |
| 1949 SYMINGTON GOULD CORP Brake Beam Support Art |
| 1949 GRIP NUT Brake Beam Safety Support Art |
| 1949 BUSSE Railway Brake Beam Mounting Patent |
| 1949 AMERICAN Truss Type Brake Beam Casting Art |
| 1949 CHICAGO Railway Brake Beam Structure Art |
| 1949 HESS Wedge Lock Brake Beam Patent Print Art |
| 1949 COUCH GLENN Brake Beam Support Patent Print |
| 1949 AMERICAN STEEL FOUNDRIES Trussed Brake Beam |
| 1949 BASELT WALTER Trussed Brake Beam Patent |
| 1949 BUFFALO BRAKE BEAM CO Brake Beam Patent |
| 1949 SIMANEK Brake Beam And Safety Support Art |
| 1949 BUSCH CHARLES Brake Beam Patent Print Art |