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US Patent: 7,672X
Steam engine
Revolving or concentric steam engine
Patentees:
Edward Penny (exact or similar names) - Rochester, NY
Isaac N. Crosby (exact or similar names) - Rochester, NY

USPTO Classifications:

Tool Categories:
propulsion and energy : steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jul. 22, 1833

Patent Pictures:
USPTO (New site tip)
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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. There are no patent drawings available. This patent is in the database for reference only.

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