[D8403ZES], Letter from U.S. Signal Corps, William Babcock Hazen to Thomas Alva Edison, July 14th, 1884
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Title
[D8403ZES], Letter from U.S. Signal Corps, William Babcock Hazen to Thomas Alva Edison, July 14th, 1884
Editor's Notes
[Letterhead Signal Office, War Dept] Writing on behalf International Conference for the Determination of Electrical Units, would like to obtain (for the Intl Bureau of Telgraphic Administration at Berne) results of obsservations on ground currents or atmospheric electricity.
Recipient
Date
1884-07-14
Type
Folder/Volume ID
D8403-F
Microfilm ID
71:207
Document ID
D8403ZES
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University