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| US Patent: 32,583 | |||||||||||||||||||||||||
| Centrifugal governor for steam-engines Marine governor | |||||||||||||||||||||||||
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 Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Ormerod, Grierson & Co. Vintage Machinery entry for Charles. T. Porter; Porter-Allen Engine Co. | ||||||||||||||||||||||||