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US Patent: 642,644
Rotary Engine
Patentee:
William F. Temple (exact or similar names) - Elsberry, Lincoln County, MO

USPTO Classifications:
415/186, 415/202

Tool Categories:
propulsion and energy : steam apparatus : rotary steam engines

Assignees:
William F. Temple - Elsberry, Lincoln County, MO
O. E. Temple - Elsberry, Lincoln County, MO

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 21, 1897
Granted: Feb. 06, 1900

Patent Pictures:
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