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US Patent: 19,834
Portable pump
Patentees: Benjamin Douglas (exact or similar names) - Middletown, CT William Douglas (exact or similar names) - Middletown, CT USPTO Classifications: 417/544, 92/100 Tool Categories: household : water and plumbing : household hand pumps Assignees: None Manufacturer: W. & B. Douglas - Middletown, CT Witnesses: Joseph K. F. Mansfield, 2nd John M. Douglas	Patent Dates: Granted: Apr. 06, 1858 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for W. & B. Douglas
Description: This pump "is especially applicable to watering gardens, syringing plants, washing windows, and like purposes."

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