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US Patent: 816,411
Compound Steam Engine
Patentee:
William Wills (exact or similar names) - Philadelphia, PA

USPTO Classifications:
91/164

Tool Categories:
propulsion and energy : steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 19, 1905
Granted: Mar. 27, 1906

Patent Pictures:
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