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US Patent: 140,136
Improvement in clamps
Patentees: John Leach (exact or similar names) - Detroit, MI Nicholas J. Holt (exact or similar names) - Howell, MI USPTO Classifications: 269/208, 269/228, 269/256 Tool Categories: work holding : clamps Assignees: None Manufacturer: Not known to have been produced Witnesses: H. F. Eberts H. S. Sprague	Patent Dates: Applied: Apr. 24, 1873 Granted: Jun. 24, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Carl Matthews

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