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US Patent: 139,281
Improvement in sash and door clamps
Patentee: Thomas S. Urie (exact or similar names) - Hubbardston, MI USPTO Classifications: 269/107, 269/256 Tool Categories: work holding : clamps Assignees: None Manufacturer: Not known to have been produced Witnesses: B. H. Bates A. C. Burnham	Patent Dates: Applied: Nov. 16, 1872 Granted: May 27, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews

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