| 1947 SIGODA VICTOR Trimming Mechanism Patent |
| 1947 CHARLES Detonating Mechanism Patent Print |
| 1947 HOHMANN RICHARD Take Up Mechanism Patent |
| 1947 BENDIX AVIAT CORP Firing Mechanism Patent |
| 1947 MILLER Gear Drive Mechanism Patent Print |
| 1947 VOLK Wheel Rotating Mechanism Patent Print |
| 1947 BENDIX AVIAT CORP Driving Mechanism Patent |
| 1947 ARTHUR HUBALEK Firing Mechanism Patent |
| 1947 HAROLD Flare Releasing Mechanism Patent |
| 1947 WALT Accordion Shift Mechanism Patent Print |
| 1947 MAN SEW CORP Trimming Mechanism Patent |
| 1947 JOHNSON Hydraulic Mechanism Patent Print |
| 1947 GRADY Propulsion Mechanism Patent Print Art |
| 1947 COLEGROVE Bobbin Winder Mechanism Patent |
| 1947 DAVID Ice Detecting Mechanism Patent Print |
| 1947 BUDD CO Aircraft Control Mechanism Patent |
| 1947 SINGER MFG CO Clutch Mechanism Patent Print |
| 1947 KNOLL Wing Flap Extending Mechanism Patent |
| 1947 ARTHUR Electric Clock Mechanism Patent |
| 1947 EKSERGIAN CAROLUS Brake Mechanism Patent |
| 1947 RICHEY Explosive Release Mechanism Patent |
| 1947 MICHAEL Aircraft Operating Mechanism Patent |
| 1947 MICHAEL Aircraft Control Mechanism Patent |
| 1947 LIVERS Selector Valve Mechanism Patent |
| 1947 HAINES Hydraulic Regulator Mechanism Patent |
| 1947 SCOTT Propeller Releasing Mechanism Patent |
| 1947 JOLLY CARL Release Mechanism Patent Print |
| 1947 CAMPBELL Transfer Mechanism Patent Print |
| 1947 EDSON NOEL Selecting Mechanism Patent Print |
| 1947 CAMP Brake Operating Mechanism Patent Print |
| 1947 DATH Shock Absorbing Mechanism Patent Print |
| 1947 BURGESS Cartridge Feeding Mechanism Patent |
| 1947 BUDD CO Brake Mechanism Patent Print Art |
| 1947 BERNHARDT Gun Loading Mechanism Patent |
| 1947 NARDONE ROMEO Driving Mechanism Patent |
| 1947 NISSEN HENRY Clutch Mechanism Patent Print |
| 1947 BUDD CO Aircraft Operating Mechanism Patent |
| 1947 KING Quick Release Mechanism Patent Print |
| 1947 BUNYARD Aircraft Control Mechanism Patent |
| 1947 MATHIAS PEDERSEN Sewing Mechanism Patent |
| 1947 SAMUEL GILBERT Firing Mechanism Patent |
| 1947 BARNES Firing Mechanism For Firearms Patent |