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US Patent: 272,670
Traction Engine
Patentee:
John H. Elward (exact or similar names) - Stillwater, Washington County, MN

USPTO Classifications:
475/244, 74/390

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 21, 1880
Granted: Feb. 20, 1883

Patent Pictures:
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