| 1931 CLAYTON Ruffling Mechanism Sewing Machines |
| 1931 CHRISTIAN Cutting Mechanism Sewing Machines |
| 1931 UNION Looper Mechanism Sewing Machines Art |
| 1931 SINGER CO Thread Cutting Mechanism Sewing Machines |
| 1931 UNION Thread Controlling Mechanism Sewing Machines |
| 1931 UNION Feeding Mechanism Sewing Machines Art |
| 1931 LEVEQUE Take Up Mechanism Sewing Machines |
| 1931 SINGER CO Roller Presser Mechanism Sewing Machines |
| 1931 JOSEPH Looper Mechanism Sewing Machines Art |
| 1931 UNITED Take Up Mechanism Sewing Machines |
| 1931 UNION Driving Stopping Mechanism Sewing Machines |
| 1931 WOHLPART Feeding Mechanism Sewing Machines |
| 1931 FIRM Cutting Mechanism Sewing Machines Art |
| 1931 LONG Driving Stopping Mechanism Sewing Machines |
| 1931 UNION Looper Operating Mechanism Sewing Machines |
| 1931 SINGER CO Ruffling Mechanism Sewing Machines |
| 1931 UNION Tension Releasing Mechanism Sewing Machines |
| 1931 SINGER Looper Operating Mechanism Sewing Machines |
| 1931 LEWIS Feeding Mechanism Sewing Machines Art |
| 1931 MUELLER Feeding Mechanism Sewing Machines |
| 1931 JOHNSON Roller Presser Mechanism Sewing Machines |
| 1931 ALLEN Thread Cutting Mechanism Sewing Machines |
| 1931 PALME Looper Operating Mechanism Sewing Machines |