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US Patent: 126,121
Improvement in compositions for rendering safes, vaults, &c., fire-proof
Patentee: John F. Wood (exact or similar names) - Everett, MA USPTO Classifications: 252/62 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: John Greer William W. Swan	Patent Dates: Granted: Apr. 23, 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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