US Patent: 301,079
|
Safety-Valve
|
Patentee:
|
|
Henry G. Ashton (exact or similar names) - Somerville, MA |
|
Patent Dates:
|
Applied: |
Jul. 01, 1880 |
Granted: |
Jul. 01, 1884 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Joel Havens "Vintage Machinery" entry for Ashton Valve Co.
|
Description: |
Patented in England, 22 Sept., 1880, #3,849; in Belgium, 27 Sept., 1880, #52,656; in Canada, 28 Sept., 1880, #11,789; in France, 29 Sept., 1880, #138,867 and in Germany, 03 Oct., 1880, #13,446.
This patent provides improvements to the safety-valve of patent 200,119 and is a companion to patent 291,126. |
|