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US Patent: 27,381
Slide-valve for steam-engines
Patentee:
John T. Plass - New York, NY

USPTO Classifications:
251/187, 251/282

Tool Categories:
propulsion and energy : steam engines : steam engine valves

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. M. Hughes
S. H. Wales

Patent Dates:
Granted: Mar. 06, 1860

Patent Pictures:
USPTO pdf tiff
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