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US Patent: 443,481
Portable Steam Engine
Patentee:
Ephraim Howland (exact or similar names) - Pontiac, Oakland County, MI

USPTO Classifications:
180/36, 180/53.1, 60/668

Tool Categories:
propulsion and energy : steam apparatus : portable steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Feb. 12, 1889
Granted: Dec. 23, 1890

Patent Pictures:
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