| 1961 COLEMAN Automatic Variable Pitch Propeller |
| 1934 KELM Automatic Variable Pitch Propeller Art |
| 1935 REED Automatic Variable Pitch Propeller Art |
| 1935 TAYLOR Automatic Variable Pitch Propeller |
| 1953 FOSS Automatic Variable Pitch Propeller Art |
| 1936 ZELIE Automatic Variable Pitch Propeller |
| 1938 BOYD Automatic Variable Pitch Propeller Art |
| 1938 LILLEY Automatic Variable Pitch Propeller |
| 1934 LAMBERT Automatic Variable Pitch Propeller |
| 1933 WILLIAM Automatic Variable Pitch Propeller |
| 1936 WILLIAM Automatic Variable Pitch Propeller |
| 1969 BROOKS Automatic Control Variable Pitch Propellers |
| 1970 PHILLIPS ADRIAN Automatic Variable Pitch Propeller |
| 1954 EVANS Automatic Variable Pitch Propeller |
| 1939 STEPHENS Automatic Variable Pitch Propeller |
| 1936 GEMENY Automatic Variable Pitch Propeller |
| 1965 BROWN Automatic Variable Pitch Propeller |
| 1933 LAMBERT Automatic Variable Pitch Propeller |
| 1970 PHILLIPS Automatic Variable Pitch Propeller |
| 1934 WILLIAM Automatic Variable Pitch Propeller |
| 1934 HARRISON Automatic Variable Pitch Propeller |