Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THACKERAY SAMUEL WHITFIELD
Original Assignee
THACKERAY SAMUEL WHITFIELD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by THACKERAY SAMUEL WHITFIELDfiledCriticalTHACKERAY SAMUEL WHITFIELD
Priority to ES33035ApriorityCriticalpatent/ES33035A1/en
Publication of ES33035A1publicationCriticalpatent/ES33035A1/en
ES33035A1903-12-071903-12-07
An improved keyboard, suitable for playing any fingerboard with its corresponding musical notation system.
ExpiredES33035A1
(en)