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US Patent: 133,513
Improvement in composition covers for coal-holes
Patentee: John W. Wood (exact or similar names) - Everett, MA USPTO Classifications: 106/683 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Samuel N. Bates William W. Swan	Patent Dates: Granted: Nov. 26, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Union Stone Co.

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