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US Patent: 538,694
Vapor Engine
Patentee:
Frank W. Ofeldt (exact or similar names) - Jersey City, Hudson County, NJ

USPTO Classifications:
91/161, 91/331, 91/8

Tool Categories:
propulsion and energy : internal combustion engines

Assignees:
Marine Vapor Engine Co. - Jersey City, Hudson County, NJ

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 21, 1893
Granted: May 07, 1895

Patent Pictures:
USPTO (New site tip)
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