| 1927 KLINK Instruction Musical Instruments Art |
| 1927 FIALA Transposing Musical Instruments Art |
| 1927 STANDARD Transposing Musical Instruments |
| 1927 JOHN Bow Stringed Musical Instruments Art |
| 1927 PAUL Key Valve Pad Musical Instruments Art |
| 1927 EMMANUEL Keyboard Musical Instruments Art |
| 1927 FRANK Tuning Slide Musical Instruments Art |
| 1927 HORTON Metal Reed Wind Instruments Art |
| 1927 CONNER Playing Attachment Stringed Instruments |
| 1927 LUCK Plectrum Stringed Instruments Art |
| 1927 LIFSHITZ Electrical Attachment Musical Instruments |
| 1927 SHERMAN Tuning Peg Stringed Instruments Art |
| 1927 BENJAMIN Mouthpiece Reed Instruments Art |
| 1927 FRANK HOLTON CO Key Valve Pad Musical Instruments |
| 1927 ANTHONY Valve Pad Wind Instruments Art |
| 1927 H Tailpiece Stringed Musical Instruments |
| 1927 WEYMANN Tailpiece Stringed Musical Instruments |
| 1927 SAMUEL P ORR Metal Reed Wind Instruments |
| 1927 EMANUEL Keyboard For Key Instruments Patent |
| 1927 WAVERLY Tuning Peg Stringed Instruments Art |
| 1927 ERDMANN Control Valve Sheet Metal Wind Instruments |
| 1927 CARL Control Valve Sheet Metal Wind Instruments |
| 1927 ADOLF Frame Stringed Musical Instruments |