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US Patent: 444,980
Traction Engine or Road Roller
Patentee:
Martin E. Hershey - Harrisburg, Dauphin County, PA

USPTO Classifications:
180/36

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 30, 1890
Granted: Jan. 20, 1891

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Harrisburg Foundry & Machine Works

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