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US Patent: 734,013
Foldable Rule
Patentees: Justus A. Traut (exact or similar names) - New Britain, CT Frank L. Traut (exact or similar names) - New Britain, CT USPTO Classifications: 292/DIG47, 403/101 Tool Categories: rules : folding rules : folding rule joints Assignees: None Manufacturer: Not known to have been produced Witnesses: Eben Strong C. H. Oldersham	Patent Dates: Applied: Dec. 01, 1902 Granted: Jul. 21, 1903 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Improved joint with the purpose of reliability and comparatively inexpensive manufacturing cost.

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