| 1939 BEAUCHAMP Stringed Instrument ELECTRO Patent 21288 |
| 1939 FITCHHORN Flute Musical Instrument Patent 25566 |
| 1939 SEVERY VICTOR Musical Instrument Patent |
| 1939 KOONS KENNETH Instrument Holder Patent |
| 1939 MCCORD HUGH Musical Instrument Patent Print |
| 1939 EMIL E DOPYERA Musical Instrument Patent |
| 1939 TERHAAR Musical Instrument Patent Print Art |
| 1939 FRANK WATSCHINGER Musical Instrument Patent |
| 1939 HENRI SELMER Musical Instrument Patent |
| 1939 ENRICO GOVONI Musical Instrument Patent |
| 1939 CONN LTD C G Musical Instrument Patent |
| 1939 SANDERS Musical Instrument Patent Print Art |
| 1939 BAKALLIE Combined Drawing Instrument Patent 30331 |
| 1939 KISLINGBURY Musical Instrument Patent Print |
| 1939 PAUL MORRIS Surveying Instrument Patent |
| 1939 JOHN Stringed Musical Instrument Patent |
| 1939 ALEXANDER Musical Instrument Patent Print |
| 1939 FINNEY Stringed Musical Instrument Patent |
| 1939 ALLEN LOOMIS Musical Instrument Patent |
| 1939 BRAMAN Stringed Instrument Body Patent |
| 1939 LONEY Wood Wind Instrument Patent Print Art |
| 1939 CONN LTD C G Wood Wind Instrument Patent |
| 1939 ZIEGNER Musical Instrument Patent Print Art |
| 1939 JONES CLIFTON String Instrument Patent |
| 1939 GIUSEPPE Musical String Instrument Patent |
| 1939 BAKALLIE Design Drawing Instrument Patent 30332 |