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Modern practice of the electric telegraph. A handbook for electricians and operators (1872)
Pope, Frank L. (Franklin Leonard), 1840-1895 · New York : D. Van Nostrand · leaf 195
m 53(03 n THE LIBRARYUNIVERSITY OF CALIFORNIA Santa Barbara • THIS BOOK IS DUE ON THE LAST DATESTAMPED BELOW.Telegraph
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
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