SE300575BSE11191/60ASE1119160ASE300575BSE 300575 BSE300575 BSE 300575BSE 11191/60 ASE11191/60 ASE 11191/60ASE 1119160 ASE1119160 ASE 1119160ASE 300575 BSE300575 BSE 300575B
Authority
SE
Sweden
Application number
SE11191/60A
Inventor
F Swensson
Original Assignee
F Swensson
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 F SwenssonfiledCriticalF Swensson
Priority to SE11191/60ApriorityCriticalpatent/SE300575B/xx
Publication of SE300575BpublicationCriticalpatent/SE300575B/xx
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B15/00—Teaching music
G09B15/02—Boards or like means for providing an indication of notes
G09B15/04—Boards or like means for providing an indication of notes with sound emitters