| 1941 KARL Hydraulic Hoist Mechanism Patent Print |
| 1941 BRUNO Control Transmission Mechanism Patent |
| 1941 OLANDER Quick Take Up Mechanism Patent |
| 1941 MACNEIL CHARLES Driving Mechanism Patent |
| 1941 EKSERGIAN CAROLUS Brake Mechanism Patent |
| 1941 DE SPAIN Sewing Mechanism Patent Print Art |
| 1941 ETTORE Aircraft Gun Mount Mechanism Patent |
| 1941 BLUEMLE ARNOLD Switch Mechanism Patent |
| 1941 EKSERGLAN CAROLUS Brake Mechanism Patent |
| 1941 ALDEN Axle Driven Mechanism Patent Print |
| 1941 MORSE Mechanism For Pianos Patent Print Art |
| 1941 BARRETT Hydraulic Hoisting Mechanism Patent |
| 1941 SOBEL WILLIAM Pinking Mechanism Patent |
| 1941 JACOT Chronograph Watch Mechanism Patent |
| 1941 LEGROS Binder Mechanism For Skis Patent |
| 1941 KLASING Hand Brake Mechanism Patent Print |
| 1941 RANSON WILLARD Brake Mechanism Patent Print |
| 1941 LANDEN WILLIAM Locking Mechanism Patent |
| 1941 MERSEREAU Hand Brake Mechanism Patent Print |
| 1941 CAMPBELL ARTHUR Timing Mechanism Patent |
| 1941 EINWAECHTER Buffer Mechanism Patent Print |
| 1941 GIULIO SOSSO Sear Mechanism Patent Print |
| 1941 HEIL CO Body Tilting Mechanism Patent Print |
| 1941 AVIS SAMUEL Sewing Mechanism Patent Print |
| 1941 GRUBER Body Tilting Mechanism Patent Print |
| 1941 GEN TIME INSTR CORP Timing Mechanism Patent |
| 1941 BALDASSARE Switch Mechanism Patent Print |
| 1941 SMITH JOHN Trigger Mechanism Patent Print |
| 1941 ARVER Blind Stitch Mechanism Patent Print |
| 1941 JOHN Stitch Forming Mechanism Patent Print |
| 1941 WILLIAMS Sear Mechanism For Firearms Patent |
| 1941 ELLIOTT Preselector Mechanism Patent Print |
| 1941 FARMER CLYDE Brake Mechanism Patent Print |
| 1941 ALLEN Boat Propelling Mechanism Patent |
| 1941 DUNCAN String Feed Mechanism Patent Print |
| 1941 BUDD WHEEL CO Brake Mechanism Patent Print |
| 1941 DOW Boat Steering Mechanism Patent Print |
| 1941 HARRY Golf Practice Mechanism Patent Print |
| 1941 BALDWIN CO Mechanism For Pianos Patent |
| 1941 WILLIAM SUMMERBELL Firing Mechanism Patent |
| 1941 HATHAWAY Register Mechanism Patent Print |
| 1941 GEN MOTORS CORP Switch Mechanism Patent |
| 1941 LLOYD Electric Timing Mechanism Patent |
| 1941 CHILD Control Surface Tab Mechanism Patent |
| 1941 MCNEAL DONALD Brake Mechanism Patent Print |
| 1941 WEEMS Decoy Gang Actuating Mechanism Patent |
| 1941 HULL Electric Switch Mechanism Patent Print |