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US Patent: 1,512,728
Spring Joint for Folding Rules Spring Joint for Extension Rules
Patentee: Charles G. Watson (exact or similar names) - Seneca Falls, NY USPTO Classifications: 16/342, 403/146 Tool Categories: rules : folding rules : folding rule joints Assignees: Westcott Rule Co., Inc. - Seneca Falls, NY Manufacturer: Not known to have been produced Witnesses: Philip R. Westcott Mary E. Scott	Patent Dates: Applied: Feb. 03, 1922 Granted: Oct. 21, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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