| 1951 JOHNSON Changeable Pitch Propeller Patent |
| 1943 SENESAC ADELOR Changeable Sign Patent Print |
| 1927 GOWER Changeable Feature Figure Toy Patent |
| 1969 CASTELLANO Chess Changeable Board Patent 29784 |
| 1955 PHILIP Changeable Feature Doll Head Patent |
| 1936 HAHN Changeable Gauge Mine Car Patent Print |
| 1966 FRITZ Changeable Pitch Propeller Patent |
| 1965 BEN Changeable Appearance Pull Toy Patent |
| 1969 RYAN Changeable Feature Figure Toy Patent |
| 1954 OLIVIER Changeable Feature Doll Head Patent |
| 1957 JONES Changeable Chord Finder Patent Print |
| 1953 BAGGOTT Changeable Feature Doll Patent |
| 1955 HERRING Changeable Feature Doll Patent |
| 1970 CROSMAN Changeable Feature Doll Patent |
| 1964 RUCKER Changeable Target Disk Game Patent |
| 1914 SCHORTMAN Changeable Speed Gearing Patent 21797 |
| 1957 JONES Simple Changeable Chord Finder Patent 25678 |
| 1940 GREENBERG Changeable Figure Toy Patent |
| 1967 FRITZ Changeable Pitch Propeller Patent |
| 1946 LEE GROSSMAN Changeable Exhibitor Patent |
| 1921 WARREN Changeable Speed Gear Patent Print |