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US Patent: 453,452
Spirit Level
Hand-y Groove
Patentee:
Justus A. Traut - New Britain, CT

USPTO Classifications:
33/381

Tool Categories:
layout tools : levels : wooden levels

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

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

Witnesses:
H. S. Walter
Chas B. Stanley

Patent Dates:
Applied: Jan. 28, 1891
Granted: Jun. 02, 1891

Patent Pictures:
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Description:
Advertised as the "Hand-y" groove. Uses a longitudinal groove on the level body to make it easier to grasp and use as well as making the body less likely to warp.

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