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US Patent: 50,506
Hot Air Engine
Patentee:
Collins Stevens (exact or similar names) - Boston, MA

USPTO Classifications:
123/58.3, 60/39.21, 60/39.6, 60/791

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Oct. 17, 1865

Patent Pictures:
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