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US Patent: 50,320
Improvement in cut-off valves
Patentee:
James M. Albertson (exact or similar names) - New London, CT

USPTO Classifications:
91/274, 91/443, 91/445

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. T. Brown
Thomas Drummond
Patent Dates:
Granted: Oct. 10, 1865

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Albertson & Douglass Machine Co.
Description:
This valve is for a steam engine.

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