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US Patent: 154,165
Improvement in core-boxes for metallic hubs
Patentee: Charles G. Allen (exact or similar names) - Barre, MA USPTO Classifications: 164/232 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Carroll D. Wright Samuel M. Barton	Patent Dates: Applied: Mar. 30, 1874 Granted: Aug. 18, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Chas. G. Allen Co.

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