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US Patent: 754,467
Relief Valve
Patentee:
Nathaniel Lombard (exact or similar names) - Brookline, Norfolk County, MA

USPTO Classifications:
137/492, 137/514, 92/45

Tool Categories:
propulsion and energy : water power : relief valves

Assignees:
N. Lombard Improved Governor Co. - Boston, Middlesex County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Aug. 11, 1902
Granted: Mar. 15, 1904

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Lombard Governor Co.

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