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US Patent: 631,370
Safety Valve and Muffler
Patentee:
John Hughes (exact or similar names) - Somerville, Middlesex County, MA

USPTO Classifications:
137/536, 181/237, 251/127

Tool Categories:
propulsion and energy : steam apparatus : steam safety valves

Assignees:
Crosby Steam Gage & Valve Co. - Boston, Suffolk County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 24, 1898
Granted: Aug. 22, 1899

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Crosby Steam Gage & Valve Co.

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