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US Patent: 430,312
Single Acting Explosive Engine
Patentee: John W. Eisenhuth (exact or similar names) - San Francisco, CA USPTO Classifications: 123/156, 123/161, 123/73AB, 123/90.21, 123/90.48, 123/90.6 Tool Categories: Assignees: Electric Vapor Engine Co. - San Francisco, CA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 06, 1889 Granted: Jun. 17, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Electric Vapor Engine Co.

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