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US Patent: 531,182
Combustible Vapor Engine
Patentee:
Ralph B. Hain (exact or similar names) - Grand Rapids, Kent County, MI

USPTO Classifications:
123/41.48, 123/41.64, 123/65VB, 123/73AB

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 01, 1894
Granted: Dec. 18, 1894

Patent Pictures:
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