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CA Patent: CA-736
Improvements on those parts of steam engines called and known as the steam chest valve and valve seat
Patentee:
I. W. Forbes (exact or similar names) - Windsor, ON Canada

USPTO Classifications:

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Dec. 10, 1870

Patent Pictures:
CIPO Data
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