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US Patent: 38,444
Improvement in pumps
Patentee: Joseph W. Douglas (exact or similar names) - Middletown, CT USPTO Classifications: 137/512.1 Tool Categories: household : water and plumbing : household hand pumps Assignees: W. & B. Douglas - Middletown, CT Manufacturer: W. & B. Douglas - Middletown, CT Witnesses: Ira Gardiner John M. Douglas	Patent Dates: Granted: May 05, 1863 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for W. & B. Douglas

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