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US Patent: 387,570
Pocket Rule
Justus A. Traut - New Britain, CT

USPTO Classifications:
33/418, 33/451, 33/465, 33/495, 403/96

Tool Categories:
rules : folding rules : folding rule joints

The Stanley Rule & Level Co. - New Britain, CT

The Stanley Rule & Level Co. - New Britain, CT

H. C. Hine
Henry S. Walter

Patent Dates:
Granted: Aug. 07, 1888

Patent Pictures:
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"Vintage Machinery" entry for The Stanley Works
A folding rule joint such that the rule can be locked in position to function either as a rule, try-square or bevel.

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