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US Patent: 324,061
Hot Air Engine
Patentees:
James A. Woodbury (exact or similar names) - Boston, Suffolk County, MA
Joshua Merrill (exact or similar names) - Boston, Suffolk County, MA
George Patten (exact or similar names) - Boston, Suffolk County, MA
Edward Frank Woodbury (exact or similar names) - Boston, Suffolk County, MA

USPTO Classifications:
60/521

Tool Categories:
propulsion and energy : external combustion engines : hot air engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 04, 1881
Granted: Aug. 11, 1885

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Woodbury, Merrill, Patten and Woodbury Air Engine Co.
The Woodbury Hot Air Engine

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