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US Patent: 231,344
Combined apparatus for producing illuminating gas and generating steam
James Henry Needles - Columbus, OH

USPTO Classifications:
122/5, 202/106, 202/114, 202/217, 202/266, 48/101, 48/113, 48/123

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

James H. Needles - Columbus, OH
George Smith Woodruff - Toronto, ON Canada
John M. Egan - Toronto, ON Canada

George S. Woodruff - Toronto, ON Canada

E. N. Bishop
D. P. Cowl

Patent Dates:
Applied: May 15, 1880
Granted: Aug. 17, 1880

Patent Pictures:
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"Vintage Machinery" entry for Geo. S. Woodruff

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