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US Patent: 691,921
Expansion-bolt
Patentee: Seth Wheeler (exact or similar names) - Albany, NY USPTO Classifications: 411/26 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Edward B. Hawkins C. F. Carrington	Patent Dates: Applied: Mar. 30, 1901 Granted: Jan. 28, 1902 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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