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US Patent: 495,281
Explosive Engine
Patentee: Frank E. Tremper (exact or similar names) - San Francisco, CA USPTO Classifications: 123/162, 123/190.4 Tool Categories: Assignees: Safety Vapor Engine Co. - New York, NY Manufacturer: Safety Vapor Engine Co. - New York, NY Witnesses: James L. King W. N. Kempston	Patent Dates: Applied: May 25, 1891 Granted: Apr. 11, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Safety Vapor Engine Co.

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