[SM008011a], Clipping, Telegraphic Journal, Franklin Leonard Pope, 1873-1885
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Title
[SM008011a], Clipping, Telegraphic Journal, Franklin Leonard Pope, 1873-1885
Bibliographic Citation
Pope, Franklin Leonard. "Electric Railroad Signal Apparatus", Telegraphic Journal, 1873-1885
Editor's Notes
secondary signal automatically set at signalling station by primary signal
Date
1873-1885
Type
Folder/Volume ID
SM008-F
Microfilm ID
23:332
Document ID
SM008011a
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University