| 1920 CARL LOMBARDO Amusement Device Patent Print |
| 1920 LAWES WILLIAM Dumping Device Patent Print |
| 1920 CHARLES Time Measuring Device Patent Print |
| 1920 OWEN JOHNSON Amusement Device Patent Print |
| 1920 ALLEN Oil Absorbing Device Patent Print Art |
| 1920 ANDREWS ALFRED Game Device Patent Print Art |
| 1920 BARNES JAMES Tracking Device Patent Print |
| 1920 POTTS Door Controlling Device Patent Print |
| 1920 GRIGG Sound Amplifying Device Patent Print |
| 1920 WILLIAMS Toy Or Display Device Patent Print |
| 1920 LINDEN JOHN Locking Device Patent Print Art |
| 1920 EMMERT WILLIAM Game Device Patent Print Art |
| 1920 PAUL Roller Supporting Device Patent Print |
| 1920 WILLIAM Car Replacing Device Patent Print |
| 1920 KAUFMANN MICHAEL Game Device Patent Print |
| 1920 ERNEST KOHLER Amusement Device Patent Print |
| 1920 BRAWN CHARLES Loading Device Patent Print |
| 1920 ROOS DELMAR Oiling Device Patent Print Art |
| 1920 GENN Portable Signal Device Patent Print |
| 1920 CASTNER JR Feeding Device Patent Print Art |
| 1920 WELCH JESSE Amusement Device Patent Print |
| 1920 CHARLES Safety Device For Cars Patent Print |
| 1920 MAYER FRANK Amusement Device Patent Print |
| 1920 PAGE ARTHUR Tracking Device Patent Print |
| 1920 LA VALLE Coasting Device Patent Print Art |
| 1920 GRIFFEY Antisetting Device Patent Print Art |
| 1920 FRENCH GEORGE Lifting Device Patent Print |
| 1920 PETER Antisubmarine Device Patent Print Art |
| 1920 KASSON Automatic Timing Device Patent Print |
| 1920 JOHN SEBETO Life Saving Device Patent Print |
| 1920 JOHNSON Animal Feeding Device Patent Print |
| 1920 ROOT Electric Signaling Device Patent Print |
| 1920 EDDIE JURAS Fishing Device Patent Print Art |
| 1920 WILLIAMSON Doll Walking Device Patent Print |
| 1920 IVAN FILES Trap Setting Device Patent Print |
| 1920 ROMAN CHARLES Amusement Device Patent Print |
| 1920 MASON Life Preserving Device Patent Print |
| 1920 MICHAL Ship Salvage Device Patent Print Art |
| 1920 ISIDOR ZION Toy Device Patent Print Art |
| 1920 THORLEIPSON Bombing Device Patent Print Art |
| 1920 JOHN STANLEY Amusement Device Patent Print |
| 1920 LINTERN JOHN Sanding Device Patent Print |
| 1920 KAZIMIRZ Ship Salvage Device Patent Print |
| 1920 WESTON Horn Shaping Device Patent Print Art |
| 1920 GUS Floating Device Patent Print Art |
| 1920 JOHN J SMITH Amusement Device Patent Print |
| 1920 WILLIAM LINTERN Sanding Device Patent Print |
| 1920 THOKAR PAUL Life Saving Device Patent Print |
| 1920 ERIC MOARD Signaling Device Patent Print |
| 1920 HAROLD BUCHANAN Coaling Device Patent Print |
| 1920 COLE WILSON Tabbing Device Patent Print Art |
| 1920 POMEROY ROY Theatrical Device Patent Print |
| 1920 GILBERT FRED Feeding Device Patent Print |
| 1920 CRUMLEY Horseshoeing Device Patent Print |
| 1920 WATSON Fly Poisoning Device Patent Print |
| 1920 ARNO OLIVER Tracking Device Patent Print |
| 1920 SCHAEFER HENRY Loading Device Patent Print |
| 1920 MANLY Lifeboat Securing Device Patent Print |
| 1920 CAMPBELL Uncoupling Device Patent Print Art |
| 1920 WILLIAM HALTON Sanding Device Patent Print |
| 1920 THOMAS GEORGE Acoustic Device Patent Print |
| 1920 MILES PERCIVAL Sanding Device Patent Print |
| 1920 PASCALES Life Saving Device Patent Print |
| 1920 GAY WILLIAM Ordnance Device Patent Print |
| 1920 GUS JORDAHN Floating Device Patent Print |
| 1920 NAPIER Target Throwing Device Patent Print |
| 1920 FEODOSY Life Saving Device Patent Print Art |
| 1920 MAGUTH MICHAEL Clamping Device Patent Print |
| 1920 MCK WATERS Amusement Device Patent Print |
| 1920 BREWSTER Antisubmarine Device Patent Print |
| 1920 BOWNE CARR Game Device Patent Print Art |
| 1920 NEAL RUSSELLE Power Device Patent Print Art |
| 1920 GOLLNER ERVIN Amusement Device Patent Print |
| 1920 TERENTIE Ship Salvage Device Patent Print |
| 1920 ROBERT Robe Securing Device Patent Print |
| 1920 KOLLIN CARL Watering Device Patent Print |
| 1920 DE VOE Strip Winding Device Patent Print |
| 1920 ROYER Animal Feeding Device Patent Print |
| 1920 LOUIS Aeroplane Safety Device Patent Print |
| 1920 JOSIP Horse Currying Device Patent Print |
| 1920 ESTEY PIANO CO Tracking Device Patent Print |
| 1920 JOHN GIESY Feeding Device Patent Print Art |
| 1920 KONRAD HASSLINGER Game Device Patent Print |
| 1920 MAXWELL Embroidering Device Patent Print |
| 1920 CHURCH JOHN Dice Game Device Patent Print |
| 1920 MANLIO Embroidering Device Patent Print Art |
| 1920 MIKE DANDY Sanding Device Patent Print Art |
| 1920 TROUT HARRY Hog Holding Device Patent Print |
| 1920 ANGELO PINTO Amusement Device Patent Print |
| 1920 HAMILTON Stock Feeding Device Patent Print |
| 1920 TRACY Animal Feeding Device Patent Print |
| 1920 FRANK Fuel Pipe Lock Device Patent Print |
| 1920 ALGOT JOHNSON Amusement Device Patent Print |
| 1920 HENRY POWER Sanding Device Patent Print Art |
| 1920 MORRILL Thread Waxing Device Patent Print |