US Patent: 128,513 - Improvement in Spirit Levels


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US Patent: 128,513

Improvement in Spirit Levels

Patentee:

Justus A. Traut (exact or similar names) - New Britain, CT

USPTO Classifications:

33/386

Tool Categories:

layout tools : levels

Assignees:

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

Manufacturer:

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

Witnesses:

E. W. Bliss

Jeremy W. Bliss

Patent Dates:
Granted:	Jul. 02, 1872

Patent Pictures:

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Description:

One end of the face plate of a sprirt vial case is secured on a raised edge to the opposite end can be adjusted up and down by use of a spring and screw.