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CA Patent: CA-11,808
Improvements on gas regulators
Patentee:
George Smith Woodruff (exact or similar names) - Toronto, ON Canada

USPTO Classifications:

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

Assignees:
None

Manufacturer:
George S. Woodruff - Toronto, ON Canada

Witnesses:
Unknown
Patent Dates:
Granted: Sep. 23, 1880

Patent Pictures:
CIPO Data
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Geo. S. Woodruff

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