| Number | Description | Inventor | Filed | Issued | Assignee | Instrument/ Comment |
|
|---|---|---|---|---|---|---|---|
| 145793 | Improvement in Piano and Organ Attachments | Léon J. Frémaux | Jul 26, 1873 | Dec 23, 1873 | |||
| 215155 | Improvement in Self-Playing Attachments for Key-Board Instruments | Edward Forbes O'Neill | Jan 17, 1879 | May 6, 1879 | |||
| 216429 | Improvement in Attachments for Musical Instruments | Mason J. Matthews | Mar 13, 1879 | Jun 10, 1879 | Mason & Hamlin Organ Company | ||
| 218663 | Improvement in Automatic Attachments For Key-Board Musical Instruments | J. Wright Chambers | Dec 14, 1878 | Aug 19, 1879 | |||
| 223387 | Key-Board Attachment for Musical Instruments | Christopher C. Reynolds | May 27, 1879 | Jan 6, 1880 | himself and William G. Young | ||
| 224152 | Automatic Key-Board Attachment for Musical Instruments | William J. Crane | Jul 10, 1879 | Feb 3, 1880 | Charles W. Barker | ||
| 227083 | Key-Board Attachment for Musical Instruments | Joseph F. White | Dec 4, 1879 | Apr 27, 1880 | E.P. Needham & Son | ||
| 227461 | Key-Board Attachment for Musical Instruments | Joseph F. White | May 27, 1879 | May 11, 1880 | E.P. Needham & Son | ||
| 231723 | Key-Board Attachment for Musical Instruments | John E. Jones | Feb 13, 1880 | Aug 31, 1880 | A.L. Stetson | ||
| 236830 | Key-Board Attachment for Musical Instruments | Francis E. Moore | Jun 3, 1880 | Jan 18, 1881 | |||
| 255609 | Key-Board Attachment for Musical Instruments | Gilbert R. Elliott | May 6, 1881 | Mar 28, 1882 | one-half to Joseph A. Harris | ||
| 261360 | Key-Board Attachment for Musical Instruments | George B. Kelly | Apr 10, 1882 | Jul 18, 1882 | |||
| 269810 | Key-Board Attachment for Musical Instruments | Francis E. Moore | Mar 30, 1888 | Dec 26, 1882 | Edward L. Rand | ||
| 277067 | Key-Board Attachment for Musical Instruments | Joseph Schwertner | Jan 22, 1883 | May 8, 1883 | |||
| 280043 | Key-Board Attachment for Musical Instruments | Sylvester Jenkins | Aug 20, 1882 | Jun 26, 1883 | |||
| 290430 | Key-Board Attachment for Musical Instruments | Jethro Matson Hooper | Mar 29, 1883 | Dec 18, 1883 | |||
| 299492 | Key-Board Attachment for Musical Instruments | Edward Forbes O'Neill | Oct 2, 1863 | May 27, 1884 | himself and Ira D. Cady | ||
| 326412 | Key-Board Attachment for Musical Instruments | William R. Eddington | Mar 14, 1884 | Sep 15, 1885 | |||
| 326413 | Mechanical Key-Board Attachment for Musical Instruments | William R. Eddington | Mar 14, 1884 | Sep 15, 1885 | |||
| 364041 | Key-Board Attachment for Musical Instruments | Henry Richards | Sep 10, 1880 | May 31, 1887 | |||
| 3714221) | Mechanical Key-Board Player | Jules Carpentier | May 28, 1867 | Oct 11, 1887 | |||
| 4196902) | Mechanical Key-Board Player | Gustave Paul Le Dan | Jan 9, 1889 | Jan 21, 1890 | |||
| 4282443) | Apparatus For Playing Key Instruments | Paul Ehrlich | Sep 2, 1887 | May 20, 1890 | The Fabrik Leipziger Musikwerke (Paul Ehrlich & Co.) | Ariston | |
| 430065 | Key-Board Self-Playing Attachment | Joseph D. Case and Clark W. Evans | Sep 10, 1886 | Jun 10, 1890 | |||
| 434384 | Key-Board Attachment for Pianos | Casper De Vilbiss | Mar 21, 1890 | Aug 12, 1890 | |||
| 440995 | Key-Board Attachment for Musical Instruments | Casper De Vilbiss | Aug 5, 1890 | Nov 18, 1890 | |||
| 476197 | Mechanical Attachment for Pianos and Organs | John Emery Harriman, Jr. | Feb 28, 1891 | May 31, 1892 | one-fourth to John N. Webb | ||
| 514259 | Attachment for Musical Instruments | George Brown | Sep 27, 1893 | Feb 6, 1894 | |||
| 523829 | Automatic Organ-Player | John August Brodin | Nov 27, 1893 | Jul 31, 1894 | |||
| 531413 | Mechanism for Actuating Keyboards by Means of Perforated Cards | Claude Gavioli | May 3, 1894 | Dec 25, 1894 | |||
| 556519 | Musical Instrument | Daniel H. Rowe | Sep 30, 1895 | Mar 17, 1896 | |||
| 592641 | Automatic Piano-Player | William D. Parker and Edward H. White | Apr 5, 1897 | Oct 26, 1897 | Edward H. White | ||
| 653529 | Automatic Piano or Organ Player | Charles W. Richards | Feb 3, 1900 | Jul 10, 1900 | |||
| 663118 | Pneumatic Piano-Playing Action | James W. Crooks | May 16, 1900 | Dec 4, 1900 | James W. Crooks, Ernest M. Skinner and Winchester Veazie | ||
| 681730 | Electric Piano-Player | Timothy B. Powers | Jul 11, 1900 | Sep 3, 1901 | The Magnetic Piano Company | ||
| 685245 | Keyboard-Player | Ernst Ludwig Georg Carl Theodor Bielefeldt and Richard Friedrich Ernst Leopold Silwar | May 20, 1901 | Oct 29, 1901 | |||
| 730504 | Keyboard-Operator | Otto Adolf Wolters | Feb 4, 1903 | Jun 9, 1903 | |||
| 779323 | Piano-Player | Frederick Sheppy | Jun 20, 1904 | Jan 3, 1905 | one-half to Edwin Gordon | ||
| 840048 | Instrument for Playing Organs or Harmoniums | James Henry Dawe | Dec 30, 1903 | Jan 1, 1907 | Panels Limited | ||
| 868740 | Electrical Piano-Playing Attachment | Joseph Weber | Sep 14, 1905 | Oct 22, 1907 | |||
| 893710 | Autopneumatic Music-Playing Instrument | Walter R. Crippen | Jul 11, 1907 | Jul 1908 | Fred W. Moore | ||
| 1504531 | Piano-Player | Henry Thompson and William R. Oyston | Nov 18, 1920 | Aug 12, 1924 | Henry Thompson | ||
| 16435624) | Keyboard Musical Instrument | Stanislaus Kucharski | Apr 1, 1925 | Sep 27, 1927 | |||
| 2488170 | Automatic Player Mechanism for Musical Instruments | Peter T. Calamari and Paul F. Murdock | Mar 10, 1949 | Nov 15, 1949 | The Aeolian Company | ||
| 2953957 | Piano Player | Lee B. Skinner, William H. Williams and John A. Westfield | Dec 12, 1955 | Sep 27, 1960 |