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US Patent: 9,031X
Pendulum Level
Patentee:
Asabel Munger - Oberlin, OH

USPTO Classifications:
33/291

Tool Categories:
layout tools : plumb bobs
trade specific : surveyor

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. S.M. Johnson
Levi Barnoll

Patent Dates:
Granted: Aug. 17, 1835

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
This appears to be a simple plumb-bob device attached to a surveyor's transit, to allow the transit to be easily levelled.

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