| 1942 FERGUS Propeller For Boats And Ships Patent |
| 1942 DICKS Controllable Propeller Patent Print |
| 1942 JOHNSON HARRY Propeller Patent Print Art |
| 1942 UNITED AIRCRAFT CORP Composite Propeller |
| 1942 BALDWIN EDWARD Propeller Patent Print Art |
| 1942 CLIFFORD NORMAN Propeller Patent Print Art |
| 1942 ASHELMAN Automatic Adjustable Propeller Art |
| 1942 STEINHAUS Airplane Propeller Patent Print |
| 1942 ALAN OSBOURNE Marine Propeller Patent Print |
| 1942 ERLE Propeller Blade Mounting Patent Print |
| 1942 COGSWELL BYRON Marine Propeller Patent |
| 1942 DI Variable Pitch Propeller Patent Print |
| 1942 LAMPTON Controllable Pitch Propeller Patent |
| 1942 SENSENICH Airplane Propeller Patent Print |
| 1942 ALWIN Propeller Mounting Control Means Art |
| 1942 COLLEY Variable Pitch Propeller Control Art |
| 1942 CESARE OFFSET PROPELLER CORP D Propeller Blade |
| 1942 UNITED AIRCRAFT CORP Propeller Blade Mounting |
| 1942 UNITED AIRCRAFT CORP Aeronautical Propeller |
| 1942 CURT Variable Pitch Propeller Patent Print |
| 1942 GODFREY Adjustable Pitch Propeller Patent |
| 1942 LAMPTON Controllqable Pitch Propeller Art |
| 1942 CALDWELL Hollow Metal Propeller Blade Art |
| 1942 MERICKLE Variable Pitch Propeller Patent |
| 1942 ERLE Aeronautical Propeller Patent Print |
| 1942 MUNIK Design Aircraft Propeller Patent19275 |
| 1942 DI CESARE Propeller Blade Patent Print Art |
| 1942 FIKE Variable Pitch Propeller Patent Print |
| 1942 MULLEN MILTON Propeller Patent Print Art |
| 1942 COGSWELL Marine Propeller Patent Print Art |
| 1942 FRITZ PRESSER Propeller Patent Print Art |
| 1942 CALDWELL Composite Propeller Patent Print |
| 1942 MANNEIL Propeller Control Mechanism Patent |
| 1942 ARMITAGE Aircraft Propeller Construction |
| 1942 GISCHOW Propeller And The Like Patent Print |
| 1942 JAEGER WATCH INC Propeller Deicing Means |
| 1942 OUTBOARD MARINE Automatic Adjustable Propeller |
| 1942 JOSEPH Propeller Deicing Means Art Print |
| 1942 DE LAVAUD Propeller Patent Print Art |
| 1942 ROLAND Controllable Pitch Propeller Patent |
| 1942 WOODS ROBERT Propeller Fairing Patent Print |
| 1942 DI Variable Pitch Propeller Hub Construction |
| 1942 MOORE Changeable Pitch Propeller Unit Art |
| 1942 OUTBOARD MARINE COMPAN Propeller Art Print |
| 1942 ERIC Feathering Propeller Control Patent |
| 1942 MATTSON OTTO Propeller Blade Patent Print |
| 1942 DEHAVILLAND AIRCRAFT Variable Pitch Propeller |
| 1942 METCALF Variable Pitch Propeller Patent |
| 1942 SWASKEY Coaxial Propeller Drive Mounting |
| 1942 WILLIAM Propeller System Patent Print Art |
| 1942 FRANCIS MILLER Propeller Patent Print Art |
| 1942 GUSTAV Screw Propeller Patent Print Art |
| 1942 WILLIAM WATERVAL Propeller System Patent |
| 1942 AVIAT CORP Controllable Pitch Propeller Art |
| 1942 ALAN Marine Propeller Art |
| 1942 AVIAT CORP Controllqable Pitch Propeller |
| 1942 JEAN Propeller With Variable Pitch Patent |
| 1942 EMMONS Controllable Pitch Propeller Patent |
| 1942 CURT Controllable Pitch Propeller Patent |
| 1942 THOMPSON Feathering Blade Propeller Patent |
| 1942 BALDWIN Propeller Patent Print Art |
| 1942 HANS Variable Pitch Propeller Aircraft Art |
| 1942 SENSENICH BROTHERS Airplane Propeller Art |
| 1942 CLAYTON Propeller Patent Print Art |
| 1942 BUDD MFG COMPANY Propeller Drive Patent |
| 1942 HEINRICH Propeller For Aircraft Patent |
| 1942 JOSEPH LEDWINKA Propeller Drive Patent |
| 1942 BELL AIRCRAFT CORP Propeller Fairing Patent |
| 1942 CLAYTON UPTON Propeller Patent Print Art |
| 1942 GUSTAV PETERSON Screw Propeller Patent |
| 1942 BENDIX AVIAT CORP Propeller Control Mechanism |
| 1942 VOSE EDWIN Aircraft Propeller Patent Print |
| 1942 ROBY INC Variable Pitch Propeller Patent |
| 1942 HAMMOND JR Variable Pitch Propeller Control |
| 1942 ANTON ROBER Propeller Patent Print Art |
| 1942 ERIC Controllable Pitch Propeller Patent |
| 1942 REID LELAND Propeller Patent Print Art |
| 1942 ROBY Variable Pitch Propeller Patent Print |