File:US22770 David E. Hughes Patent.pdf: Difference between revisions
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== Summary == | == Summary == | ||
Latest revision as of 03:28, 13 December 2019
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:17, 12 December 2019 | (743 KB) | Hswarford (talk | contribs) | Be it known that I, David E. Hughess, of New York, county of New York, and State of New York, have invented certain new and useful Improvements in Telegraphing Machines; and I do hereby declare that the following is a full, clear, and exact descriptio... |
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