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US Patent: 159,882
Improvement in spirit levels
Patentee:
Edwin L. Barnes - Boston, MA

USPTO Classifications:
33/348, 356/249

Tool Categories:
layout tools : levels : wooden levels

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Henry W. Williams
B. W. Williams

Patent Dates:
Applied: Aug. 03, 1874
Granted: Feb. 16, 1875

Patent Pictures: [ 1 | 2 | 3 | 4 ]
USPTO pdf tiff
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Description:
Patrick Leach had one of these on a tool list of his. He said it is stamped with the wrong patent date of September 20, 1874, a date on which no patents were issued.

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