| 1930 MINER INC W H Hand Brake Patent Print Art |
| 1930 POWELL Brake Hanger Bracket Patent Print |
| 1930 STEWART CARLTON Airplane Brake Patent Print |
| 1930 GUSTIN BACON MFG CO Brake Rigging Patent |
| 1930 THEODOR Brake Apparatus For Aircraft Patent |
| 1930 STANLEY BEATTY Brake Mechanism Patent Print |
| 1930 OTTO Brake For Railroad Vehicles Patent |
| 1930 ERNEST KALLENBACH Brake For Sleds Patent |
| 1930 WEAVER Rudder And Brake Control Patent |
| 1930 HOERR LOUIS Hand Brake Patent Print Art |
| 1930 SHAW Brake For Baby Carriages Patent Print |
| 1930 COWART MARION Aeroplane Brake Patent Print |
| 1930 SEIDEN JOHN Airplane Brake Patent Print Art |
| 1930 BAPTISTE Vehicle Fender And Brake Patent |
| 1930 HARVEY HIERS Airplane Brake Patent Print |
| 1930 ZWEIBEL CHARLES Hand Brake Patent Print Art |
| 1930 FOYLE JOHN Brake Rigging Patent Print Art |
| 1930 O'CONNOR ARTHUR Hand Brake Patent Print Art |
| 1930 SAUVAGE Regulator For Brake Rigging Patent |
| 1930 RAILWAY DEVICES COMPANY Hand Brake Patent |