| 1961 JEAN Hand Operated Boat Propeller Patent |
| 1961 THOMAS Locking Propeller Blades Art Print |
| 1961 ALLIS CHALMERS CO Detachable Blade Propeller |
| 1961 COLEMAN Automatic Variable Pitch Propeller |
| 1961 HEINTZELMAN Propeller Attachment Mounting Means |
| 1961 MARIE Propeller Guard Outboard Motorboat |
| 1961 WIRKKALA Marine Propeller Patent Print Art |
| 1961 BAUGHER Propeller Mechanism Marine Vessels |
| 1961 NAULTY Controllable Pitch Propeller Patent |
| 1961 SHAFFER STANLEY Propeller Guard Patent |
| 1961 HANSEN Vertical Axis Propeller Mechanism |
| 1961 HURLEY Propeller Driven Railway Vehicle Art |
| 1961 MANLEY Propeller Outboard Motorboat Patent 23008 |
| 1961 MANZOLILLO Marine Propeller Patent Print |
| 1961 KARLSTAD MEKANISKA AB Steering Propeller |
| 1961 WILHELM Blade Wheel Propeller Patent Print |
| 1961 WIRKKALA OSCAR Marine Propeller Patent |
| 1961 ERLBACHER Propeller Tubular Rudder Patent 19362 |
| 1961 CURTISS Propeller Driven Railway Vehicle |
| 1961 WANZER Propeller Thrust Stabilizer Control |
| 1961 SHAFFER Propeller Guard Patent Print Art |
| 1961 AKE JARDMO Steering Propeller Patent Print |
| 1961 UHRICH Detachable Blade Propeller Patent |
| 1961 JOSEF Propeller Driven Snow Vehicle Patent |
| 1961 WAGENER Marine Propeller Patent Print Art |
| 1961 MCCULLOCH CORP Propeller Mounting Outboard Motors |
| 1961 OUTBOARD MARINE CORP Quick Change Marine Propeller |
| 1961 BYRON Propeller Mounting Outboard Motors |
| 1961 LILJEQUIST Quick Change Marine Propeller |
| 1961 WELCH Propeller Blade Sock Patent Print Art |
| 1961 MOORE Automatically Adjustable Propeller |
| 1961 VOITH GMBH J M Blade Wheel Propeller Patent |