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US Patent: 144,965
Improvement in pumps
Patentee:
Joseph W. Douglas (exact or similar names) - Middletown, CT

USPTO Classifications:
248/351

Tool Categories:
household : water and plumbing : household hand pumps

Assignees:
W. & B. Douglas - Middletown, CT

Manufacturer:
W. & B. Douglas - Middletown, CT

Witnesses:
Henry T. Brown
Michael Ryan

Patent Dates:
Applied: Sep. 02, 1873
Granted: Nov. 25, 1873

Patent Pictures:
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Vintage Machinery entry for W. & B. Douglas

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