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US Patent: 23,320
Surface Skimmer for Steam Boiler
Apparatus for Skimming of the Water in Steam-Boilers
Patentee:
A. M. Sprague (exact or similar names) - Mobile, AL

USPTO Classifications:
122/389

Tool Categories:
propulsion and energy : steam apparatus : stationary boilers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George Patten
John S. Hollingshead
Jason G. Clay
Patent Dates:
Granted: Mar. 22, 1859

Patent Pictures:
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