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US Patent: 471,253
Valve Gear for Compound Engines
Patentees:
Taylor W. Heintzelman (exact or similar names) - Sacramento, Sacramento County, CA
Charles T. Noyes (exact or similar names) - Sacramento, Sacramento County, CA

USPTO Classifications:
91/157, 91/159, 91/331

Tool Categories:
propulsion and energy : steam engines : steam engine valve gear

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 21, 1891
Granted: Mar. 22, 1892

Patent Pictures:
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