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US Patent: 1,172,709
Thermostatic Arch Flow Regulator
Patentee:
Frank H. Hopkins (exact or similar names) - Somerville, Middlesex County, MA

USPTO Classifications:
122/451.1, 236/101R, 236/103

Tool Categories:
industrial tools : pressure regulators
industrial machines : industrial machine mechanisms : industrial control apparatus : flow controls

Assignees:
American Steam Gauge & Valve Mfg. Co. - Boston, Suffolk County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 28, 1914
Granted: Feb. 22, 1916

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

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