NF Patent: NF-33
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| Improvements in telegraphing, cutting off disturbance caused by earth currents, obtaining a high speed of signalling through long circuits, and preservation of exposed condition by electro-lythic action
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Patentee:
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| Cromwell Fleetwood Varley (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Aug. 31, 1868 |
Report data errors or omissions to steward
Jeff Joslin
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Description: |
| See Newfoundland patent NF-30 for more information on the inventor. |
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