| 1938 BLOMBERG Railway Brake Rigging Patent Print |
| 1938 JOHN CANETTA Variable Load Brake Patent |
| 1938 CRAIG FRED Brake Rigging Patent Print Art |
| 1938 AMERICAN BRAKE CO Brake Rigging Patent |
| 1938 CROSSMAN THEODORE Brake Rigging Patent |
| 1938 AMERICAN STEEL FOUNDRIES Brake Patent Print |
| 1938 DOEPP Wind Brake For Aircraft Patent Print |
| 1938 PIRON EMIL Hand Brake Linkage Patent Print |
| 1938 SCHWENTLER Unit Brake Structure Patent |
| 1938 AMERICAN BRAKE CO Slack Adjuster Patent |
| 1938 FITCH Fluid Pressure Brake Patent Print Art |
| 1938 HOLLOWAY JESSE Brake Rigging Patent Print |
| 1938 BLOMBERG Brake Slack Adjuster Patent Print |
| 1938 HEWITT Electric Brake Means Patent Print |
| 1938 DWYER WILLIAM Hand Brake Patent Print Art |
| 1938 HOKE HARRY Brake Mechanism Patent Print Art |
| 1938 SIMMONS Brake For Sleds And Jumpers Patent |
| 1938 GEN MOTORS CORP Brake Slack Adjuster Patent |
| 1938 COOKE Brake Beam Hanger Device Patent Print |
| 1938 BUSCH Brake Beam Support Or The Like Patent |
| 1938 MILLER LOUIS Car Brake Patent Print Art |
| 1938 ISAACSON Brake Beam Safety Support Patent |
| 1938 McCAULEY Pneumatic Aircraft Brake Patent 9064 |
| 1938 STEWART Fluid Pressure Brake Patent Print |
| 1938 BASELT WALTER Brake Arrangement Patent |
| 1938 COULTER Brake Beam Leveler Patent Print Art |
| 1938 NICKLISS Brake Applying Device Patent Print |
| 1938 LAWRENCE BENSON Fish Reel Brake Patent |
| 1938 MUELLER EMIL Brake Mechanism Patent Print |
| 1938 MINER INC W H Hand Brake Patent Print Art |
| 1938 BETHLEHEM STEEL CORP Car Brake Patent Print |
| 1938 AMERICAN STEEL FOUNDRIES Clasp Brake Patent |
| 1938 BASELT Unit Cylinder Clasp Brake Patent |
| 1938 JOHNSON Brake Hanger Retainer Patent Print |
| 1938 GANTNER WILLIAM Brake Mechanism Patent |
| 1938 BUSH RANKIN Brake Switch Device Patent |
| 1938 SMITH CARL Rail Brake Patent Print Art |
| 1938 CRITTENDEN Magnetic Brake Shoe Patent Print |
| 1938 WESTINGHOUSE AIR BRAKE CO Rail Brake Patent |
| 1938 DOREY Resilient Brake Connection Patent |
| 1938 AMERICAN BRAKE CO Link Structure Patent |
| 1938 COTTRELL Brake Beam Safety Guard Patent |
| 1938 HEFFNER HARRY Sled Brake Patent Print Art |
| 1938 MCCUNE Magnetic Track Brake Patent Print |
| 1938 SMITH HENRY Brake Mechanism Patent Print |
| 1938 TRANSIT RES CORP Hand Brake Linkage Patent |
| 1938 TAYLOR HARRY Brake Beam Support Patent |
| 1938 FARMER Fluid Pressure Brake Patent Print |
| 1938 GOETTIE Roller Skate Brake Patent Print Art |
| 1938 GANTNER WILLIAM Brake Rigging Patent Print |
| 1938 BASELT WALTER Clasp Brake Patent Print Art |
| 1938 BASELT Light Weight Brake Beam Patent Print |
| 1938 FREDERIC SCHAEFER Brake Beam Leveler Patent |
| 1938 STEVENS Trip Controlled Brake Patent Print |
| 1938 AMERICAN BRAKE CO Brake Mechanism Patent |
| 1938 CAMP Hand Brake Art Print Patent |
| 1938 AURIEN RAY Brake Arrangement Patent Print |
| 1938 BENDIX PROD CORP Brake Patent Print Art |