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US Patent: 764,015
Pressure Gage
Patentee:
George Spencer (exact or similar names) - Somerville, Middlesex County, MA

USPTO Classifications:
73/737

Tool Categories:
gauges : vacuum and pressure gauges

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

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 10, 1903
Granted: Jul. 05, 1904

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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