| 1929 WENDT Propeller Attachment Patent Print Art |
| 1929 MARIO VIALE Screw Propeller Patent Print |
| 1929 SVENDSEN Propeller Mounting Patent Print |
| 1929 FRANK HOFFMAN Propeller Patent Print Art |
| 1929 JATUNN Aeroplane Propeller Patent Print Art |
| 1929 THOMPSON Propeller Or The Like Patent Print |
| 1929 WALTER Aeroplane Propeller Patent Print Art |
| 1929 TAYLOR JAMES Propeller Patent Print Art |
| 1929 FRIEDRICH Ship'S Propeller Patent Print Art |
| 1929 KENNETH D CLARK Propeller Patent Print Art |
| 1929 DWELLE Aeroplane Propeller Patent Print Art |
| 1929 THRIFT GRIFFIN Propeller Guard Patent Print |
| 1929 WATSON Propeller Patent Print Art |
| 1929 ANDERSON JOHN Boat Propeller Patent Print |
| 1929 MCCORMACK Sled Propeller Means Patent Print |
| 1929 GEORGE CHECKLEY Propeller Patent Print Art |
| 1929 MARTENS FREDERICK Propeller Patent Print |
| 1929 OTTO Propeller Shaft Support Patent Print |
| 1929 GABULL Propeller Guard Patent Print Art |
| 1929 THOMPSON Screw Propeller Patent Print Art |
| 1929 KRODEL Propeller Mechanism Patent Print Art |
| 1929 DEERING AUGUST Propeller Patent Print Art |
| 1929 ANDERSON Boat Propeller Patent Print Art |
| 1929 GEORGE Propeller Patent Print Art |
| 1929 ADOLPH SCHERTZ Propeller Patent Print Art |
| 1929 WATSON EDWARD Propeller Patent Print Art |
| 1929 SCHROEDER ERNEST Propeller Patent Print Art |