| 1927 PANCOTTI Accordion Patent 6771 |
| 1950 BALDANZA Toy Accordion COLUMBIA Patent 25615 |
| 1927 JOSEPH GALLEAZZI Accordion Plate Patent |
| 1952 ROSENHEIM Child'S Accordion Patent Print |
| 1961 MONFELT CLINTON Accordion Pickup Patent |
| 1954 WALTER Accordion Shoulder Plate Patent |
| 1940 WURLITZER CO Accordion Construction Patent |
| 1951 WURLITZER CO Accordion Bass Section Patent |
| 1953 BALDANZA Toy Accordion Construction Patent |
| 1980 ORLANDONI Keyboard Accordion MUSICAL Patent 25840 |
| 1864 PRIES Accordion Portable Instrument Patent 21174 |
| 1961 LOEFFELHOLZ Accordion Converter Patent |
| 1958 STANEATE Ornamental Design Accordion Patent 25694 |
| 1939 SOPRANI Design Accordion CONTINENTAL Patent 25569 |
| 1929 VICTOR Accordion Strap Attachment Patent |
| 1959 CONNIE Accordion Reed Construction Patent |
| 1953 COLUMBIA Toy Accordion Construction Patent |
| 1958 PATTI Stop Actuator Accordion BRANER Patent 25689 |
| 1965 HENRY NILSEN Piano Accordion Patent Print |
| 1956 TERLINDE Accordion Microphone Control Patent 25671 |