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GB Patent: GB-186,303,212
Steam engines and boilers
Patentee: James Howden (exact or similar names) - Glasgow, Scotland USPTO Classifications: Tool Categories: propulsion and energy : steam engines Assignees: None Manufacturer: James Howden & Co., Ltd. - Glasgow, Scotland Witnesses: Unknown	Patent Dates: Granted: Dec. 19, 1863 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for James Howden & Co., Ltd.
Description: Two pairs of double-expansive engines configured so that their crankshafts are parallel. Improvements to patent GB-186,200,034.

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