| 1920 BLACKLOCK Method Of Controlling Guns Patent |
| 1920 DAVIS Method And Means For Catching Fish |
| 1920 LIETZ Bed Game Tables Method Making Same |
| 1920 SUBMARINE SIGNAL CO Method Producing Fog Screens |
| 1920 JENNINGS Receptacle Pocket Method Making Same |
| 1920 WEIS Method Of Making Triple Seams Patent |
| 1920 FLINTKOTE CO Method Making Shingle Strips |
| 1920 SPALDING Pocketed Carrier Method Producing Same |
| 1920 LIETZ Bed Game Tables Method Of Making Same |
| 1920 ALFRED Method Building Concrete Ships Art |
| 1920 JAMES Sectional Ship Method Joining Sections |
| 1920 OVERBURY Method Making Shingle Strips Art |
| 1920 CORP Method Affixing Objects On Cards Supports |
| 1920 BLAKELY Method Manufacturing Securing S Art |
| 1920 FESSENDEN Method Sound Insulation Art Print |
| 1920 KEMPTON Method Forming Stream Line Bodies |
| 1920 MELDRAM Doll Method Of Making Same Patent |
| 1920 WILLIAM C CONE Method Building Concrete Ships |
| 1920 EUGENE Method Molding Concrete Ships Art |
| 1920 BARRON Method Machine Ornamenting Hosiery |
| 1920 SINGER Method Attaching Garment Hooks To Fabrics |
| 1920 MACY Method Automatic Control Vehicles Art |
| 1920 ANDERSON Boom Stick Method Preparing Same |
| 1920 PAUL Means And Method Of Catching Fish |
| 1920 STRAIGHT Bearing Method Making Same Art |
| 1920 ANDERS Acoustic Signaling Method Patent |
| 1920 SINGER Method Machine Ornamenting Hosiery |
| 1920 STEINMETZ Method Navigating Aircraft Art |
| 1920 LEIGH Method Producing Fog Screens Art |
| 1920 SUBMARINE SIGNAL CO Method Sound Insulation |
| 1920 GRUBB Means Method Coupling Cotton Ties Art |
| 1920 UNION Method Uniting Fabric Sections Art |
| 1920 FARR Filling Cushion Pipings Method Of Using Same |
| 1920 BARRON Method Attaching Garment Hooks To Fabrics |
| 1920 BERGER Method Uniting Fabric Sections Art |
| 1920 EMIL Method Affixing Objects On Cards Supports |
| 1920 METROPOLITAN Method Making Triple Seams Art |
| 1920's Sheet Music -Mrs Curwen's Pianoforte Method |