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US Patent: 713,255
Joint for Foldable Rules or Similar Devices
Joint for Extension Rules
Patentee:
Frank L. Traut (exact or similar names) - New Britain, CT

USPTO Classifications:
403/146

Tool Categories:
rules : folding rules : folding rule joints

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Justus A. Traut
Eben Strong

Patent Dates:
Applied: Feb. 05, 1902
Granted: Nov. 11, 1902

Patent Pictures:
USPTO (New site tip)
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