[D7828ZEX], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, December 10th, 1878
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Title
[D7828ZEX], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, December 10th, 1878
Editor's Notes
vocal engine patent allowed and will be No. 270,767
Recipient
Date
1878-12-10
Type
Folder/Volume ID
D7828-F
Microfilm ID
18:840
Document ID
D7828ZEX
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University