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US Patent: 450,402
Machines for Boring the Valve-Boxes of Cylinders of Steam Engines
Patentees:
George H. Corliss, deceased (estate of) (exact or similar names) - Providence, Providence County, RI
Emily A. Corliss, administratrix (exact or similar names) - Providence, Providence County, RI

USPTO Classifications:
144/99, 408/100

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 21, 1889
Granted: Apr. 14, 1891

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Corliss Steam Engine Works
Description:
Application renewed 06 Nov., 1890.

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