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US Patent: 420,242
Plumb Level
Patentee:
Carl Emil Nielsen - Salt Lake City, UT

USPTO Classifications:
33/333, 33/352, 33/391

Tool Categories:
layout tools : levels : inclinometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Andrew Anderson
David Edwards

Patent Dates:
Applied: Jan. 30, 1889
Granted: Jan. 28, 1890

Patent Pictures:
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Description:
More correctly described as a compass level that has a removeable compass and an level indicator in the form of a weighted metallic level indicator that dispenses with using a more expensive fragile glass spirit level.

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