| 1940 FRENTZEL Dumping Mechanism Patent Print Art |
| 1940 LANDIS GYR AG Time Measuring Mechanism Art |
| 1940 WURLITZER CO Accordion Shift Mechanism Art |
| 1940 HANS Feed Mechanism For Sewing Machines Art |
| 1940 UNION Feed Mechanism Sewing Machines Art |
| 1940 WILLIAM Breechblock Operating Mechanism Art |
| 1940 HOFE Alarm Clock Time Setting Mechanism Art |
| 1940 EXHIBIT SUPPLY Escapement Mechanism Art |
| 1940 UNION Feeding Mechanism Sewing Machines Art |
| 1940 DAVIES Feed Control Sewing Mechanism Art |
| 1940 HANS Looper Mechanism Sewing Machines Art |
| 1940 GEN ELECTRIC Novelty Pendulum Mechanism Art |
| 1940 UNION Looper Mechanism Sewing Machines Art |
| 1940 BOLDT Brake Control Mechanism Aircraft Art |
| 1940 GEN ELECTRIC Switch Operating Mechanism Art |
| 1940 NAT Feed Control Sewing Mechanism Art Print |
| 1940 OSGOOD Hoisting Mechanism Patent Print Art |
| 1940 SHONNARD Hoisting Mechanism Vehicles Art |
| 1940 AMERICAN HAIR FELT Stitching Mechanism Art |
| 1940 STANLEY Boat Steering Driving Mechanism Art |
| 1940 HANS Feeding Mechanism Sewing Machines Art |
| 1940 BARNES Lifeboat Propelling Mechanism Art |
| 1940 WHITEHEAD Setting Mechanism Clocks Art |
| 1940 HEIL CO Dumping Mechanism Patent Print Art |
| 1940 KUCERA Feed Mechanism Sewing Machines Art |
| 1940 BURGESS De Icing Mechanism Patent Print Art |
| 1940 GAR WOOD IND INC Dump Truck Mechanism Art |
| 1940 DOUGLAS Tail Gate Operating Mechanism Art |
| 1940 WOODWARD GOVERNOR CO Governor Mechanism Art |
| 1940 LE Feed Mechanism For Sewing Machines Art |
| 1940 EHRICK Dumping Mechanism Truck Bodies Art |