| 1931 BRIGGS & STRATTON CORP Switch Patent Print |
| 1931 DICTAPHONE CORP Control Device Patent Print |
| 1931 SILUNTKADDI CORP Golf Bag Patent Print Art |
| 1931 BRIGGS STRATTON CORP Locking Art Print |
| 1931 WHITING CORP Drop Pit Patent Print Art |
| 1931 DELCO REMY CORP Sound Signal Patent Print |
| 1931 DICTAPHONE CORP Sound Receiving Art Print |
| 1931 AMERICAN PIANO CORP Valve Unit Patent Print |
| 1931 ORLOW PRODUCTS CORP DE Skate Patent Print |
| 1931 DELCO REMY CORP Switch Patent Print Art |
| 1931 RAMAPO AJAX CORP Switch Stand Patent Print |
| 1931 RAMAPO AJAX CORP Lamp Tip Patent Print Art |
| 1931 FAIRCHILD LOCK CORP Gas Lock Patent Print |
| 1931 CHRYSLER CORP Trunk Rack Patent Print Art |
| 1931 AUTO ORDNANCE CORP Firearm Patent Print Art |
| 1931 ROGERS BROTHERS CORP Truck Patent Print Art |
| 1931 TRICO PRODUCTS CORP Horn Patent Print Art |
| 1931 BRIGGS & STRATTON CORP Lock Patent Print |
| 1931 FAIRCHILD LOCK CORP Body Locking Art Print |
| 1931 AMERICAN HARDWARE CORP Lock Patent Print |
| 1931 IVES CORP Toy Bogie Truck Patent Print Art |
| 1931 BETHLEHEM STEEL CORP Car Brake Patent Print |
| 1931 RCA CORP Acoustic Sound Pick Up Art Print |
| 1931 OAKES PRODUCTS CORP Indicator Patent Print |
| 1931 GEN MOTORS CORP Bumper Patent Print Art |
| 1931 SKIBOARD CORP Motor Surf Board Patent Print |
| 1931 LIONEL CORP Electrical Toy Patent Print Art |
| 1931 UNIVERSAL TOY CORP Vehicle Patent Print Art |
| 1931 OWNAME PRODUCTS CORP Tee Caddy Patent Print |