Description of the translating apparatus and universal galvanometer invented by Cromwell F. Varley.
| Main Creator: | |
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| Format: | Book |
| Language: | English |
| Published / Created: |
[S.l. :
s.n.],
1863.
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| Subjects: | |
| Notes: | With: A handbook of practical telegraphy ... / Robert Spelman Culley. Physical description: 8, 12 p., [16] leaves of plates : ill. (some fold.) ; 24 cm. more |