| 1961 NOLIN EARL Fishing Apparatus Patent Print |
| 1961 ANDRE Breathing Apparatus For Divers Patent |
| 1961 KUEBLER Scenery Handling Apparatus Patent |
| 1961 WITMER Train Detecting Apparatus Patent |
| 1961 EVANS PROD CO Freight Loading Apparatus Art |
| 1961 LYONS Article Handling Apparatus Patent |
| 1961 DOVE BLAINE Exercising Apparatus Patent |
| 1961 BRATTON Apparatus For Treating Vegetation |
| 1961 ALBERT Collapsible Game Apparatus Patent |
| 1961 HEIMANN Meat Switching Apparatus Patent |
| 1961 BORRMANN Anchoring Apparatus Patent Print |
| 1961 GRIFFITH Egg Collecting Apparatus Patent |
| 1961 CHAPMAN Freight Loading Apparatus Patent |
| 1961 CALDWELL Well Perforating Apparatus Patent |
| 1961 BELL Reward Dispensing Apparatus Patent |
| 1961 DOLEGA FRANK Game Apparatus Patent Print |
| 1961 LEO Material Handling Apparatus Patent |
| 1961 SCHAPER WILLIAM Game Apparatus Patent Print |
| 1961 SCHAPER MFG CO INC Game Apparatus Patent |
| 1961 LINDSAY Crop Treating Apparatus Patent |
| 1961 EDWARD Boat Steering Apparatus Patent Print |
| 1961 LETOURNEAU Boat Beach Apparatus Patent |
| 1961 DI PIETRO Game Apparatus Patent Print Art |
| 1961 CORPENING Board Game Apparatus Patent Print |
| 1961 WHITTAKER WINFIELD Gymnastic Apparatus Art |
| 1961 ARTHUR Gymnastic Apparatus Patent Print Art |
| 1961 WEBER JOHN Ski Tow Apparatus Patent Print |
| 1961 LEHFELDT Spring Diving Apparatus Patent |
| 1961 BANOVAC Agricultural Spraying Apparatus |
| 1961 NELSON Basketball Training Apparatus Patent |
| 1961 SIMJIAN LUTHER Game Apparatus Patent Print |
| 1961 KIRCHNER Artistic Game Apparatus Patent |
| 1961 TRIPPET Batting Practice Apparatus Patent |
| 1961 FARKAS Gymnastic Apparatus Patent Print Art |
| 1961 BERGER Barn Cleaning Apparatus Patent Print |
| 1961 ERWIN Venting Apparatus For Aquariums |
| 1961 PETERSEN IND INC Loading Apparatus Patent |
| 1961 COLEMAN Selective Firing Apparatus Patent |
| 1961 GEN PRECISION INC Detecting Apparatus |
| 1961 SPENCER Steering Apparatus Patent Print Art |
| 1961 SHAFER Apparatus For Untwisting Lines |
| 1961 KAPPEN Pallet Transporting Apparatus Patent |
| 1961 ELMER LEWIS Casting Apparatus Patent Print |
| 1961 COLLINS Stanchion Apparatus Patent Print |
| 1961 SCHAEFERS Display Apparatus Patent Print |
| 1961 HAMEL Boat Guiding Apparatus Patent Print |
| 1961 FORD Seafood Farming Apparatus Patent Print |
| 1961 SHIELDS Regulating Apparatus Patent Print |
| 1961 SCHWENDENMANN Hog Exercising Apparatus |
| 1961 SCHMUCK Football Training Apparatus Patent |
| 1961 HAMILTON Marine Propulsion Apparatus Patent |
| 1961 MATTHEWSON Spraying Apparatus Patent Print |
| 1961 KONOPKA Pistol Draw Game Apparatus Patent |
| 1961 ROWLEY PAUL Towing Apparatus Patent Print |
| 1961 BOPP Material Handling Apparatus Patent |
| 1961 EASTON Bouncing Apparatus For Children Art |
| 1961 BARNES CHARLES Cutting Apparatus Patent |
| 1961 ROBERT Apparatus For Retrieving Patent |
| 1961 PETERSEN Loading Apparatus Patent Print Art |
| 1961 ATOR JOE Detecting Apparatus Patent Print |
| 1961 STAHLEY Athletic Training Apparatus Patent |
| 1961 MCMAHON Mobile Spraying Apparatus Patent |
| 1961 LEWIS Ski Instruction Apparatus Patent |
| 1961 BAKER Cargo Securing Apparatus Patent Print |