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US Patent: 580,172
Gas or Other Explsive Engine
Patentee:
Mildred Blakey - Pittsburg, Allegheny County, PA

USPTO Classifications:
60/621

Tool Categories:
propulsion and energy : internal combustion engines : internal combustion engine valves

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 10, 1896
Granted: Apr. 06, 1897

Patent Pictures:
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