US Patent: 306,208 - Safety Valves


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US Patent: 306,208

Safety Valves

Patentees:

Henry G. Ashton (exact or similar names) - Somerville, MA

Randall Gould (exact or similar names) - Boston, MA

USPTO Classifications:

137/469, 137/540

Tool Categories:

propulsion and energy : steam apparatus : steam safety valves

Assignees:

Ashton Valve Co. - Boston, MA

Manufacturer:

Ashton Valve Co. - Boston, MA

Witnesses:

Patent Dates:
Applied:	Apr. 11, 1884
Granted:	Oct. 07, 1884

Patent Pictures:

USPTO (New site tip)
Google Patents
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"Vintage Machinery" entry for Ashton Valve Co.

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