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US Patent: 318X
Hydraulic Elevator
Hydraulic machine for raising water
Patentee:
Barnabas Langdon (exact or similar names) - St Albans, Franklin County, VT

USPTO Classifications:
417/572

Tool Categories:
specialty machines : elevators and lifts
material handling : industrial elevators and lifts

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Feb. 20, 1801

Patent Pictures:
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Description:
Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. No patent drawing is available. This patent is in the database for reference only.

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