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NF Patent: NF-23
Diving-bell
Patentee:
Benjamin Maillefert (exact or similar names) - Astoria, NY

USPTO Classifications:

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Aug. 28, 1860

Patent Pictures:
Report data errors or omissions to steward Jeff Joslin
Wikipedia biography of Benjamin Maillefert
Description:
See US patent 19,785.

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