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US Patent: 10,398 | |||||||||||||||||||||||
Self Adjusting Cut Off Operating Cut-Off Valves of Steam Engines | |||||||||||||||||||||||
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Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Wright Steam Engine Works "Vintage Machinery" entry for Woodruff & Beach Iron Works "Vintage Machinery" entry for Washington Iron Works |