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US Patent: 283,564
Right Angled Level
Patentee:
Bozwell B. Butt - Richmond, VA

USPTO Classifications:
33/354, 33/374, 33/383

Tool Categories:
layout tools : levels : machinist levels
layout tools : levels : inclinometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Charles M. Jones
Holland Butt

Patent Dates:
Applied: Dec. 07, 1882
Granted: Aug. 21, 1883

Patent Pictures:
USPTO pdf tiff
Google Patents
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