NF Patent: NF-23
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Diving-bell
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Patentee:
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Benjamin Maillefert (exact or similar names) - Astoria, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Aug. 28, 1860 |
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Jeff Joslin Wikipedia biography of Benjamin Maillefert
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Description: |
See US patent 19,785. |
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