| 1921 WEIHER Aeroplane Propeller Patent Print Art |
| 1921 HELSABECK Propeller Patent Print Art |
| 1921 WESTINGHOUSE ELECTRIC CO Propeller Art |
| 1921 WOOD BERT Propeller Patent Print Art |
| 1921 FREDERICK Propeller Patent Print Art |
| 1921 COOPER HEWITT Propeller Patent Print Art |
| 1921 LEMIEUX JOHN Propeller Patent Print Art |
| 1921 FREDERICK RAE Propeller Patent Print Art |
| 1921 CONWAY EDWARD Propeller Patent Print Art |
| 1921 KAMP WALTER Propeller Patent Print Art |
| 1921 LEINWEBER CURTIS Propeller Patent Print Art |
| 1921 RICHARD W COOK Propeller Patent Print Art |
| 1921 OLIVE Boat Propeller Art |
| 1921 BRUNO SCHMELZER Propeller Patent Print Art |
| 1921 DICKS Propeller Art Print Patent |
| 1921 FUNK Propeller Art |
| 1921 WILLIAM C KIDDER Propeller Patent Print Art |
| 1921 ARNO BOERNER Propeller Patent Print Art |
| 1921 CONTINENTAL AIR CRAFT TRANSP Propeller Art |
| 1921 NECEDAH CORP Motor Propeller Boats Art |
| 1921 WALTHER Propeller Shaft Patent Print Art |
| 1921 DORMAN DE Propeller Patent Print Art |
| 1921 DYAS Disappearing Propeller Boats Art Print |
| 1921 WESTING HOUSE ELECTRIC C Propeller Art |
| 1921 JEAN BAPTISTE Propeller Patent Print Art |
| 1921 DAVIES Reversing Propeller Patent Print Art |
| 1921 PATTOSIEN Propeller Patent Print Art |
| 1921 GEROLAMO Propeller Patent Print Art |
| 1921 KASLEY ALEXANDER Propeller Patent Print Art |
| 1921 CASPAR CHARLES Propeller Patent Print Art |
| 1921 LEMIEUX Propeller Patent Print Art |
| 1921 IGNACI Screw Propeller Patent Print Art |