| 1921 JOHN FLINNER Amusement Device Patent Print |
| 1921 MILLER DONALD Signaling Device Patent Print |
| 1921 FRITZ Electric Winding Device Patent Print |
| 1921 RANDALL CHARLES Dumping Device Patent Print |
| 1921 JACOB GROSS Advertising Device Patent Print |
| 1921 ARCHIE Switch Operating Device Patent Print |
| 1921 COCHRAN EVANS Poultry Device Patent Print |
| 1921 LEWIS HENRY Sewing Device Patent Print Art |
| 1921 TOWLE GEORGE Sanding Device Patent Print |
| 1921 PARMELE Life Saving Device Patent Print Art |
| 1921 CHARLES Hose Uncoupling Device Patent Print |
| 1921 JAMES Brake Holding Device Patent Print Art |
| 1921 VOGT Animal Releasing Device Patent Print |
| 1921 GEORGE MORE Portage Device Patent Print Art |
| 1921 LONG HILLARY Runner Device Patent Print Art |
| 1921 EMMONS CHARLES Tracking Device Patent Print |
| 1921 LA BATT Amusement Device Patent Print Art |
| 1921 BETTENGA Animal Feeding Device Patent Print |
| 1921 GARBETH WILLIAM Raising Device Patent Print |
| 1921 JOHN Boat Stabilizing Device Patent Print |
| 1921 RATHBUN MILO Fender Device Patent Print Art |
| 1921 THAYER Ramp Contact Device Patent Print Art |
| 1921 WALLIS Safety Device For Cars Patent Print |
| 1921 EARL GUILD Amusement Device Patent Print |
| 1921 PARKS Boat Propelling Device Patent Print |
| 1921 RICHARD I HALL Tufting Device Patent Print |
| 1921 EFISIO Street Signaling Device Patent Print |
| 1921 JOSEPH Ship Salvaging Device Patent Print |
| 1921 MORRIS UNGER Amusement Device Patent Print |
| 1921 KOLARIE Animal Weaning Device Patent Print |
| 1921 PAUL Portable Sewing Device Patent Print |
| 1921 WESTPHAL FREDERICK Game Device Patent Print |
| 1921 BOWMAN EDWIN Amusement Device Patent Print |
| 1921 BOHN FRANK Safety Device Patent Print Art |
| 1921 STRONG GRACE Game Device Patent Print Art |
| 1921 HARRY Wheel Locking Device Patent Print Art |
| 1921 FROST Stock Feeding Device Patent Print Art |
| 1921 MEYER Thread Waxing Device Patent Print Art |
| 1921 MAZZERI Reed Protecting Device Patent Print |
| 1921 SIMON Vehicle Safety Device Patent Print |
| 1921 JACK KING Log Handling Device Patent Print |
| 1921 CHAMBERS Mail Receiving Device Patent Print |
| 1921 PFLUEGER Lubricating Device Patent Print |
| 1921 ANTON Valve Actuating Device Patent Print |
| 1921 ASPEREN Aerial Lifting Device Patent Print |
| 1921 LOUIS Vehicle Signal Device Patent Print |
| 1921 IKE WISNIPOLSKY Marking Device Patent Print |
| 1921 GEBERT CARL Amusement Device Patent Print |
| 1921 ERNEST KOHLER Amusement Device Patent Print |
| 1921 QUINN WILLIAM Lifting Device Patent Print |
| 1921 KENNEDY JAMES Timing Device Patent Print |
| 1921 JABLON OSCAR Locking Device Patent Print |
| 1921 WEST GASS Amusement Device Patent Print Art |
| 1921 ROY RAYMOND Amusement Device Patent Print |
| 1921 JOHN JEX Pyrotechnic Device Patent Print |
| 1921 LYON & HEALY Pedal Device Patent Print Art |
| 1921 LOUIS Ship Retarding Device Patent Print |
| 1921 LOUIS Sound Signaling Device Patent Print |
| 1921 HANRATH THEODORE Game Device Patent Print |
| 1921 COLVIN KENNEDY Feeding Device Patent Print |
| 1921 WILBERT Lever Locking Device Patent Print |
| 1921 ALLEN Railway Signal Device Patent Print |
| 1921 HENRY Game Scoring Device Patent Print Art |
| 1921 LARSON Halibut Fishing Device Patent Print |
| 1921 GIMPERLING JOHN Locking Device Patent Print |
| 1921 WILLIAM Train Stopping Device Patent Print |
| 1921 JOSEPH CLARK Sprayer Device Patent Print |
| 1921 VALENTINE ROLLO Tufting Device Patent Print |
| 1921 ALPERT DAVID Amusement Device Patent Print |
| 1921 STEWART CHARLES Game Device Patent Print |
| 1921 JOSEPH Vessel Raising Device Patent Print |
| 1921 GEORGE Auto Locking Device Patent Print Art |
| 1921 GROVER Device For Holding Hogs Patent Print |
| 1921 ALBERT Loss Preventing Device Patent Print |
| 1921 BARRY Bomber'S Training Device Patent Print |
| 1921 LONG HILLARY Skate Device Patent Print Art |
| 1921 EVANS Guiding Device For Sleds Patent Print |
| 1921 JOHN L MARTIN Loading Device Patent Print |
| 1921 CASS Safety Car Control Device Patent Print |
| 1921 VERNON TORREY Game Device Patent Print Art |
| 1921 LOUIS EGER Loading Device Patent Print Art |
| 1921 LYONS Time Indicating Device Patent Print |
| 1921 JOHN FERRIS Spraying Device Patent Print |
| 1921 ROY FLEURY Auto Towing Device Patent Print |
| 1921 BERRY EMORY Assembling Device Patent Print |
| 1921 LINDAMOOD Amusement Device Patent Print Art |
| 1921 SMITH ERNEST Calling Device Patent Print |
| 1921 WERTS DAVID Locking Device Patent Print Art |
| 1921 JAMES SAYIH Amusement Device Patent Print |