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US Patent: 30,485
Steam Valve
Patentee:
Joseph F. Letellier - Grand Rapids, Kent County, MI

USPTO Classifications:
137/613, 137/637.3

Tool Categories:
propulsion and energy : steam engines : steam engine valves

Assignees:
Francis Letellier - Grand Rapids, Kent County, MI

Manufacturer:
Leitelt Iron Works - Grand Rapids, Kent County, MI

Witnesses:
Edward Smith
Michael H. Hughes
T. H. Alexander
William A. Hughes

Patent Dates:
Applied: Oct. 23, 1860
Granted: Oct. 23, 1860

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Valley City Iron Works
"Vintage Machinery" entry for Leitelt Iron Works

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