US Patent: X4,164 - Marine elevating dock apparatus


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US Patent: 4,164X

Marine elevating dock apparatus

Patentees:

Ephraim Buck (exact or similar names) - Boston, MA

Henry Crehore (exact or similar names) - Boston, MA

Robert Gerry (exact or similar names) - Boston, MA

Abel Bayard (exact or similar names) - Boston, MA

USPTO Classifications:

Tool Categories:

transportation : nautical

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Granted:	Jul. 11, 1825

Patent Pictures:

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Description:

Listed in A List of Patents Granted by the United States, from 10 Apr., 1790 to 31 Dec. 1836, 1872, pg. 292

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. There are no patent drawings available. This patent is in the database for reference only.