| 1920 BASCOM Stable Cleaning Means Patent Print |
| 1920 WILCOX Sign Exhibiting Means Patent Print |
| 1920 DAVIS Method And Means For Catching Fish |
| 1920 LADISLAV Securing Means Ends Strings Instruments |
| 1920 MATTHEWS Means Controlling Aircraft Art |
| 1920 BAUER Propelling Means For Boats Patent |
| 1920 DE Means Stabilizing Flying Machines Art |
| 1920 KENYON Cooperating Means Banjo Heads Art |
| 1920 MARIA CALATAYND Transporting Means Patent |
| 1920 SLOAN Propelling Means Aeroplanes Art Print |
| 1920 LEE Automatic Valve Controlling Means |
| 1920 HENRY Means Preventing Clogging Sand Pipes |
| 1920 TOM Means Oiling Wheels Tramway Vehicles |
| 1920 WILCOX Vehicle Anchoring Means Railway Cars |
| 1920 ALEXANDER Protecting Means Vessels Art |
| 1920 MULLER Securing Means Ends Strings Instruments |
| 1920 WATT Means For Mooring Airships Patent |
| 1920 FATE Automatic Train Stopping Means Patent |
| 1920 ERWIN Sound Modifying Means Patent Print |
| 1920 PARKER Means Securing License Tags To Vehicles |
| 1920 TROTTA Propulsion Means Patent Print Art |
| 1920 JOSEPH Sound Modifying Means Phonographs |
| 1920 FISK Controlling Means Gramophones Art |
| 1920 PAUL Means And Method Of Catching Fish |
| 1920 HEBERN E J MCLAUGHLIN Lock Cover Securing Means |
| 1920 LEE Lock Cover Securing Means Patent Print |
| 1920 TROTTA DOMINIC Propulsion Means Patent |
| 1920 PIO Means Defense Ships Against Attacks Submarines |
| 1920 ZINK Means For Locking Automobiles Patent |
| 1920 ADALBERTO Parachute Comprising Pneumatic Means |
| 1920 PEARCE Means For Protecting Ships Patent |
| 1920 JAMES Bumper Supporting Means Patent Print |
| 1920 GRUBB Means Method Coupling Cotton Ties Art |
| 1920 AUGUST Locking Means For Automobiles Patent |
| 1920 DE Means Propelling Steering Ships Art |
| 1920 AIRCRAFT LTD Means Starting Engines Aeroplanes |
| 1920 SHAKESPEARE Means Starting Engines Aeroplanes |
| 1920 PHILLIPS Means Salvaging Submerged Vessels |
| 1920 IRWIN Theft Detecting Means Vehicles Art |
| 1920 JOEDICKE Means Forming Lines Stitches Art |
| 1920 PHILIPPE Means To Propel Boats Like Art |
| 1920 OHIO MOTOR VEHICLE Bumper Supporting Means |