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Summary

US. 73,753. H. W. Poole. Key-board for Organs &c. 28.01.1868

Fig.2 Perspective view showing the relative position of all the Keys.

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patents patent drawings us patent office 1849 inventions 1868 inventions enharmonic keyboards henry ward poole musical keyboard diagrams organ manuals organ schematics reed organ components inventions
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Date

1868
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Source

USPTO
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Link

http://uspto.gov/
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Copyright info

public domain

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Topics

patents patent drawings us patent office 1849 inventions 1868 inventions enharmonic keyboards henry ward poole musical keyboard diagrams organ manuals organ schematics reed organ components inventions