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GB Patent: GB-191,017,693
Improvements in valves and valve-gear for steam-hammers and the like
Patentees: Harvey Clayton (exact or similar names) - Manchester, County of Lancaster, England Harold Fletcher Massey (exact or similar names) - Manchester, County of Lancaster, England USPTO Classifications: Tool Categories: metalworking machines : forging machines : drop hammers Assignees: None Manufacturer: B. & S. Massey Ltd. - Manchester, County of Lancaster, England Witnesses: Unknown	Patent Dates: Applied: Jul. 26, 1910 Granted: May 11, 1911 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for B. & S. Massey

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