[SM008004e], Clipping, Electrical News, August 14th, 1875
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Title
[SM008004e], Clipping, Electrical News, August 14th, 1875
Bibliographic Citation
Harper, Richard Robert. "Improvements in electric telegraph apparatus for train-signalling and working the traffic on railways upon the block or space system, parts of which apparatus are applicable to and for other purposes", Electrical News, August 14th, 1875
Author
Date
1875-08-14
Type
Folder/Volume ID
SM008-F
Microfilm ID
23:328
Document ID
SM008004e
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University