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US Patent: 687,836
Clamp Hand-Screw Clamp
Patentee: Hans Jorgensen (exact or similar names) - Chicago, IL USPTO Classifications: 269/220, 269/242 Tool Categories: work holding : clamps : hand screws Assignees: None Manufacturer: Adjustable Clamp Co. - Chicago, IL Witnesses: Rudolph William Lotz John Snowhook	Patent Dates: Applied: Aug. 30, 1901 Granted: Dec. 03, 1901 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)
Description: See Holman's January 17, 1922 patent (No. 1403958) for a later improvement.

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