| 1940 H N WHITE COMPANY Musical Instrument Patent |
| 1940 HERMANN SCHERBAK Master Instrument Patent |
| 1940 SWANSON Musical Instrument Design Patent 25575 |
| 1940 BERGAN Musical Tuning Instrument Patent |
| 1940 FREDERICK Musical Instrument Patent Print |
| 1940 GUSTAV Toy Musical Instrument Patent Print |
| 1940 ANDERSON Instrument Dial PRODUCTIVE Patent 24560 |
| 1940 LARISCH Musical Instrument Bridge Patent |
| 1940 MODESTO RIVERA String Instrument Patent |
| 1940 BROWN Indicating Instrument TAYLOR Patent 48900 |
| 1940 ANDERSON Instrument Dial INVENTIONS Patent 24559 |
| 1940 HENRY MOERTEL Musical Instrument Patent |
| 1940 BRUNO Electrical Musical Instrument Patent |
| 1940 GEORGE Electrical Musical Instrument Patent |
| 1940 REUTHER Musical Instrument Patent Print Art |
| 1940 FIRESTONE Musical Instrument Patent Print |
| 1940 PROWSE SKINNER Musical Instrument Patent |
| 1940 SCHWARTZ Reed for Wind Instrument BRILHART Patent |
| 1940 VERVILLE Musical Instrument Reed Patent 6809 |
| 1940 HELBERGER Electrical Organ Instrument Patent 11008 |
| 1940 WHITE HENDERSON Musical Instrument Patent |
| 1940 BROCKWAY Musical Instrument Patent Print |
| 1940 CARL Pad For Wind Instrument Keys Patent |
| 1940 ELLISON Stringed Instrument Tuner Patent |
| 1940 LAURENS Musical Instrument Patent Print Art |
| 1940 SKINNER Reed Blower Music Instrument Patent 21294 |
| 1940 LARISCH Musical Instrument Bridge Patent 21291 |
| 1940 CONN LTD C G Musical Instrument Patent |
| 1940 SUMNER JOHN Musical Instrument Patent Print |
| 1940 QUATTROCIOCCHE Musical Instrument Patent |
| 1940 LOAR Stringed Musical Instrument Patent |
| 1940 MOHLER VALENTIN Musical Instrument Patent |
| 1940 SEVERY Electrical Musical Instrument Patent |
| 1940 L A THOMPSON String Instrument Patent Print |
| 1940 JAMES MANATT Musical Instrument Patent |
| 1940 H & A SELMER INC Musical Instrument Patent |
| 1940 EUGENE SANDER Musical Instrument Patent |
| 1940 YOUNG Cover Instrument Case ELECTRIC Patent 26188 |